So, i was testing CM10 Beta 3 by bieltv.3 and CM9 NIGHTLY 21/11 by Wayland, with the same supercharger settings & CPU freq, on CM9 i have shuttering while playing music, someone say thats is due to low class sd, but this not happen on CM10.
The other issue is scrolling, browsing with dolphin browser on CM9 is a laggy jumpy experience, while on CM10 not.
i will try to logcat this while earn at least 10 posts, to reply on CM9 thread.
Hope that CM9 devs read this, this issues shoulnd´t happen on ICS, knowing that it has more free RAM than JB.
Have in mind: JB has been smoothed and also has Project Buttery goodness while ICS has not, it's even laggy on the Gnex
Sent from my GT-S5830 using Tapatalk 2
germands_90 said:
So, i was testing CM10 Beta 3 by bieltv.3 and CM9 NIGHTLY 21/11 by Wayland, with the same supercharger settings & CPU freq, on CM9 i have shuttering while playing music, someone say thats is due to low class sd, but this not happen on CM10.
The other issue is scrolling, browsing with dolphin browser on CM9 is a laggy jumpy experience, while on CM10 not.
i will try to logcat this while earn at least 10 posts, to reply on CM9 thread.
Hope that CM9 devs read this, this issues shoulnd´t happen on ICS, knowing that it has more free RAM than JB.
Click to expand...
Click to collapse
I will take a look
scrolling lag: seems to be dolphin browser related, is not so hard on stock browser.
About the play shuttering, i rarely happens smartassv2/ondemand 245-800. The phone must be playing music without user activity.
(Frank) said:
Have in mind: JB has been smoothed and also has Project Buttery goodness while ICS has not, it's even laggy on the Gnex
Sent from my GT-S5830 using Tapatalk 2
Click to expand...
Click to collapse
Project butter doesn't work on Galaxy Ace as it requires 3.X kernel.
_________________________________
This post was generated automatically from Lewis' muffin
Chief Executive and Co-Founder of Lewis' Inc.
I often faced the same problem, but it disappears/greatly reduces when i increase the min cpu freq to 245 or higher.
Related
Is it only me noticing that scroll is laggy in ICS roms, both sammy leaks and cm9, compared to stock GB?
Sent from my GT-I9100 using Tapatalk
Yes, that's because source code hasn't been released in the case of cm9, and because the Sammy rom's are leaks and are still a work in progress. They will become much smoother when officially released and source code is available.
Sent from my GT-I9100T
where are you seeing this lag? I'm on XXLP6 and the scrolling is perfect; better than GB in my opinion.
Have you tried forcing 2d GPU acceleration?
Browser, settings menus. Forcing 2d acceleration didn't change anything.
Sent from my GT-I9100 using Tapatalk
I haven't experienced said scroll lag, but then again I always do a full wipe before updating.
Sent from my GT-I9100 using XDA App
Lag??
I'm on the latest CM9 and running real smooth for me!!
What the OP is referring to here is not LAG, it is slow inertia while scrolling. This is the characteristic of ICS and is not something observed only on Galaxy S2 (people have been complaining about it on GNex as well). It is totally different from how it was in GB where just a slight flick would result in fast scrolling. In ICS, you have to flick more times to reach the bottom of the list. However, I also like the GB implementation better and have been looking for a hack/mod which would fix it, but AFAIK there is none so far!
You might be using XXKP8 or older version of Sammy, Those builds have lags. Instead go for [IML74K] ROMs they have better scrolling.
I'm on an S1 (i9000), so perhaps not directly comparable, but I have this exact issue with THS CM9 alpha build 16 ICS ROM, which is marked IML74K (whatever that means?).
Scrolling itself is perfectly smooth, but scroll "flicking" feels like it has considerably more friction that on GB.
I'm sure it's down to personal taste, but I wish it were configurable. I much preferred the GB behaviour.
I have switched from samsung LP7 rom to AOSP (F1 GNex) and then AOKP (hydrogen).
and I really love the overall UI smoothness on both, however I did notice that 3D graphics performance is not as good as in the samsung ics rom.
This is very noticeable (low frame rate lag) in games like Modern Combat 3 and ShadowGun..
Anybody knows the reason why?
Note: I did not underclock/undervolt the cpu or gpu
same issue here on all AOSP and AOKP roms i think there is real problem in GPU driver in Aosp OR screen refresh rate and until now not fixed i really hate the fps drops in games i feel like i have a **** device not sgs2
btw if u run antutu when it come in 3d graphic test(knight) in start of test the fps get stuck at 51 fps like 10-15 second then it goes up and in nena mark 2 when u look in the fps meter u can see the fps gose up an down like hell in all aosp roms and the test lag as hell the u will got 46 on sammy rom the test run so so smooth and the fps much better no fps drops and u will got between 52-54 fps
this issue is keeping me on sammy rom but i really like the Aosp and Aokp i really hope it will fix soon
Agreed.
yahyoh said:
in nena mark 2 when u look in the fps meter u can see the fps gose up an down like hell in all aosp roms and the test lag as hell the u will got 46 on sammy rom the test run so so smooth and the fps much better no fps drops and u will got between 52-54 fps
Click to expand...
Click to collapse
I can confirm this.
Can it be fixed im cm9?
Sent from my GT-I9100 using XDA
iamnotkurtcobain said:
Can it be fixed im cm9?
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
idk there is many things to fix in Aosp roms and most impotent thing is the laggy 3d thing that issue keep away from cm or aokp roms but i really like them
u can ask codeworkx for fix but he will ignore u and i think he is busy with i9100G too as i read in cm thread
btw there is problem with ram too
in sammy rom i got more than 1070 points in aosp only 890 in quadrant i got more than 3200 in ram points in aosp 2000
so for now sammy rom is best in every thing performance-stability-for games - etc
in GB the Aosp roms was slightly better in every thing than sammy rom but idk what happened in ics it become the opposite or maybe sammy but some magic in there ics roms
darkchazz said:
I have switched from samsung LP7 rom to AOSP (F1 GNex) and then AOKP (hydrogen).
and I really love the overall UI smoothness on both, however I did notice that 3D graphics performance is not as good as in the samsung ics rom.
This is very noticeable (low frame rate lag) in games like Modern Combat 3 and ShadowGun..
Anybody knows the reason why?
Note: I did not underclock/undervolt the cpu or gpu
Click to expand...
Click to collapse
Agree
yahyoh said:
idk there is many things to fix in Aosp roms and most impotent thing is the laggy 3d thing that issue keep away from cm or aokp roms but i really like them
u can ask codeworkx for fix but he will ignore u and i think he is busy with i9100G too as i read in cm thread
btw there is problem with ram too
in sammy rom i got more than 1070 points in aosp only 890 in quadrant i got more than 3200 in ram points in aosp 2000
so for now sammy rom is best in every thing performance-stability-for games - etc
in GB the Aosp roms was slightly better in every thing than sammy rom but idk what happened in ics it become the opposite or maybe sammy but some magic in there ics roms
Click to expand...
Click to collapse
Agree
Enviado do meu GalaxyS2 usando Tapatalk 2.1
maybe you can get driver sources from samsung so codeworkx can work on them
other wise you have to live with it
sadly samsung doesnt provide sources besides kernel
in fact no manufacturer does
which is the biggest drawback in aosp rom or phones like s2
but the advantages out weight the problems aosp ftw
what the hell the thread moved to Q&A thanks for mod now no one will see it
So it's a driver problem I assume ?
AOKP & CM9 roms are slow compare to AOSP & Sam roms. I usualy get 59.8 fps on antutu benchmark at knights where as on AOKP & CM9 roms it doesn't go beyond 54-56 fps. IMO try 4.0.3 roms instead of 4.0.4 ! You will feel the difference.
And one more thing try Siyah 3.0.0rc1 - 3.0.1. (Device gets quite hot but it gives you nice fps on HD games like MC3,Shadowgun, Asphalt 6).
I know AOKP & CM9 have lots of nice tweaks but they are not yet optimized & have some touch problems likr when you swipe left it goes right etc )
:| Bye
Chairmansaab said:
AOKP & CM9 roms are slow compare to AOSP & Sam roms. I usualy get 59.8 fps on antutu benchmark at knights where as on AOKP & CM9 roms it doesn't go beyond 54-56 fps. IMO try 4.0.3 roms instead of 4.0.4 ! You will feel the difference.
And one more thing try Siyah 3.0.0rc1 - 3.0.1. (Device gets quite hot but it gives you nice fps on HD games like MC3,Shadowgun, Asphalt 6).
I know AOKP & CM9 have lots of nice tweaks but they are not yet optimized & have some touch problems likr when you swipe left it goes right etc )
:| Bye
Click to expand...
Click to collapse
what u mean by AOSP
as i know AOSP is cm9 or F1 rom
I've just been trying out GT-I9100_XEU_I9100XWLP7_I9100XXLPS_I9100XEULP5.tar from Infratech's stock ROM thread for the last day or so and have found it slow. Often I'll touch the screen and nothing will register or it will take a full second or so to respond. Starting apps can sometimes take up to two seconds before it seems to register. Scrolling long lists in various apps can sometimes show a small amount of lag on Gingerbread, but on this ROM it's horrific.
This can't be right can it? Is anyone else finding this? If this is progress in the name of ICS, I'll stick with GB.
hollal said:
I've just been trying out GT-I9100_XEU_I9100XWLP7_I9100XXLPS_I9100XEULP5.tar from Infratech's stock ROM thread for the last day or so and have found it slow. Often I'll touch the screen and nothing will register or it will take a full second or so to respond. Starting apps can sometimes take up to two seconds before it seems to register. Scrolling long lists in various apps can sometimes show a small amount of lag on Gingerbread, but on this ROM it's horrific.
This can't be right can it? Is anyone else finding this? If this is progress in the name of ICS, I'll stick with GB.
Click to expand...
Click to collapse
I don't know about stock rooms but I'm on cm9 the latest nightly and its pretty slick to be honest. I can't wait until the wake locks are sorted but I just love it! I hate anything of Sammy stock firmware I think they are kind of clueless in that department but good in the hardware side of things. Also people have been talking about Sammy working on android 4.0.4 so that should fix any issues. Hope I helped you mate
Sent from my GT-I9100 using xda premium
I've been on cm9 for the last few months, and I have just dual-booted lp9 Samsung ICS rom yesterday, and I just couldn't believe how slow and laggy everything was in Samsung ICS rom compered to cm9 and Samsung gingerbread rom. The browser was horrendously laggy compared to Samsung gingerbread roms and the same issues as described by the OP. Also, the scrolling mechanism was just screwed up beyond belief. I really like the idea of switching between cm9 and Samsung roms when I feel like change, but at the moment I find all ICS Samsung roms, just unusable after using cm9. I hope Samsung fixes this mess in their next major update.
ICS 4.0.3 is not 100%
ICS 4.0.3 is not 100% perfect couple of issue are there.
Waiting for Samsung to Release 4.0.4 which will address many issues that are present in 4.0.3.
cm9 to me is draging ics behind it, when ics is improved cm9 will be mint ,im still on Gb but will flash when it gets up to 4.1.0 etc, i dont want these bugs in my daily life.
I'm using LP7, tweaked some cosmetic stuff, and I find it very fast and responsive. A friend recently changed from GB 2.3.6 to ICS 4.0.3 official via Kies and said (his words, not mine): its a whole new smartphone.
try cm9 buddy, best rom ive used atm
or you can try hydrogenics, its basically the same with some added tweaks.
Resurrection v1.8
Sent from my GT-I9100 using XDA
ICS is smooth for me, very smooth. Don't use AOKP roms since lgcamera doesn't work well with them yet. Battery life is worse than sammy based roms as well, plus no dialer codes work. The only LAG I've gotten is with Quickpic. Don't know what the difference is between Quickpic on GB and this one on ICS but swiping across photos lags like hell and yet the stock gallery is now smooth like cream
For me, ICS is smooth as a baby's bottom, as long I stay on stock kernel. Once I flash a custom kernel, smoothness goes south. For this reason, although I like the fast charging feature in Siyah, I have to stay on stock.
dialer codes are working for me
cm9 is smooth as hell and more than stable for normal usage
yes, it is laggy. little better using Siyah.
No issues whatsoever when using AOKP roms. Try changing kernels.
Sent from my Galaxy S2 using Tapatalk
Using Resurrection ROM 1.8.1. It is buttery smooth with excellent battery life.
Stock Samsung laggy
CM9 stable and smooth but battery life is so shocking to use for daily life
I don't have a choice right now then wait for stock 4.0.4 samsung rom...
Sent from my GT-I9100 using xda premium
DramatikBeats said:
ICS is smooth for me, very smooth. Don't use AOKP roms since lgcamera doesn't work well with them yet. Battery life is worse than sammy based roms as well, plus no dialer codes work. The only LAG I've gotten is with Quickpic. Don't know what the difference is between Quickpic on GB and this one on ICS but swiping across photos lags like hell and yet the stock gallery is now smooth like cream
Click to expand...
Click to collapse
Try the app "Gallery ICS", you can foun on market
Enviado desde mi GT-I9100 usando Tapatalk 2
DramatikBeats said:
ICS is smooth for me, very smooth. Don't use AOKP roms since lgcamera doesn't work well with them yet. Battery life is worse than sammy based roms as well, plus no dialer codes work. The only LAG I've gotten is with Quickpic. Don't know what the difference is between Quickpic on GB and this one on ICS but swiping across photos lags like hell and yet the stock gallery is now smooth like cream
Click to expand...
Click to collapse
I found a ROM that was receiving a lot of praise, called AndyX. It's using Siyah kernel if I remember right. I tried it and it was actually very good, nice and smooth, no complaints. It also has the ICS look I was expecting to see which was quite nice. You mention lgcamera not working on AOKP ROMs - I'd never heard of AOKP but have just done a quick google and may see what's kicking around for the S2. I know this is the wrong thread, but it's thanks to you I can now record video in 720p without in looking like a slideshow (lgcamera tips in another thread)
So, in summary, my initial choice entering the world of ICS just turned out to be a dud and there's hope yet.
EDIT: I may well go back to AndyX for a bit.. I had to restore to my normal GB ROM because I changed governor in AndyX and now the phone freezes before I can unlock it
Napalm Candy said:
Try the app "Gallery ICS", you can foun on market
Enviado desde mi GT-I9100 usando Tapatalk 2
Click to expand...
Click to collapse
Going to give it a try. Something tells me it won't be able to hide folders like Quickpic or Fishbowl Gallery though
hollal said:
I found a ROM that was receiving a lot of praise, called AndyX. It's using Siyah kernel if I remember right. I tried it and it was actually very good, nice and smooth, no complaints. It also has the ICS look I was expecting to see which was quite nice. You mention lgcamera not working on AOKP ROMs - I'd never heard of AOKP but have just done a quick google and may see what's kicking around for the S2. I know this is the wrong thread, but it's thanks to you I can now record video in 720p without in looking like a slideshow (lgcamera tips in another thread)
So, in summary, my initial choice entering the world of ICS just turned out to be a dud and there's hope yet.
EDIT: I may well go back to AndyX for a bit.. I had to restore to my normal GB ROM because I changed governor in AndyX and now the phone freezes before I can unlock it
Click to expand...
Click to collapse
AOKP is based off CM9 with other mods flung in (Look at Resurrection Remix or Hydrogenics) and they both run smooth. However I NEED lgcamera unless I get horrible FPS in the camera (looks like you know what I'm talking about lol). Just so you know, 1080p does work as well without lag just in case you didn't notice. I do prefer 720p though. No automatic zoom in like 1080p. I used to be on AndyX rom, quite some time ago actually
I came from Gingerbread KL1 & updated to LPG, gotta say even though I had the phone for 4 days (on GB) the lag is very much noticeable on ICS! The phone was just blazing quick everywhere but it just *feels* different now...
ICS 4.0.3 official works the best!
ICS 4.0.3 official works the best!
So had my nexus 10 for a few days now and im confused about the general stuttery performance issues. my galaxy s3 running cm10 runs android rather buttery and smooth. the nexus 10 seems to be lacking butter. ive tried the nexus 4 and it's a great buttery performance but the 10 lags and stutters alot, is this just because of the screen resolution or is a fault of android? ive tried cm10 and others nexus 10 roms but still seems kinda stuttery. is over clocking the answer? it's only really 2d performance where the 10 seems to be lacking and i expected more from a 1.7 dual core proc.
something i have noticed is that as long as i keep my finger on the screen, it does not lag, however if i fling and then remove my figure it lags and stutters.
i want to hear other peoples opinions on nexus 10 performance because so far, i fail to see the butter.
moonytoonyking said:
i want to hear other peoples opinions on nexus 10 performance because so far, i fail to see the butter.
Click to expand...
Click to collapse
If there are performance problems, the reason they never get fixed is that people insist on posting subjective experience with "lag" on xda instead of objective, useful bug reports on the AOSP bug tracker..
In my experience, though, it's always a ****ty app hogging the UI thread in a service or some other noob developer move causing lag.
My N10 is smooth and stock.
The idea behind Project Butter, I believe, is that when you have your finger on the screen, then the governor automatically ramps up the speed to whatever the max has been set to. This is the reason why interactive is now the most common governor of choice for AOSP. I suppose you could root and flash a different kernel with other specialised governors like KToonses, which comes with PegasusQ, KToonsertive and others. Or even on stock you could change to other kernels and see if that helps out. I haven't really been noticing much problem with the stutter even on interactive tbh. Animations are fine, so could be that you do have some cpu intensive app causing the lag.
Sent from my HTC One X using xda premium
I use both daily, cm 10.1 on my d2vzw and can tell you my N10 doesn't lag/stutter, both are comparable speed wise in daily use here. As others have suggested I would check your installed apps for irregular behavior
Sent from my SCH-I535 using XDA
I have a nexus 10 and a 9300i too, and my nexus 10 is much much faster!
Actually thinking about it 1 app runs better on my S3, google chrome. I use the AOSP browser instead on my N10, for this as well as flash support.
Think i found the problem
it would appear that having google currents syncing in the background causes lag. tablet is super fast after disabling.
No lag here whatsoever. Running cm10.1 nightlies.
I haven't had a single hint of lag since day one. Seriously, literally as smooth as smooth can be as far as 2D desktop experience goes. If you're suffering noticeable lag I'd honestly think you have a faulty tablet. This thing is BUTTER.
moonytoonyking said:
it would appear that having google currents syncing in the background causes lag. tablet is super fast after disabling.
Click to expand...
Click to collapse
I believe the thread you're referring to is here:
http://forum.xda-developers.com/showthread.php?t=2012756
bamboosensei said:
The idea behind Project Butter, I believe, is that when you have your finger on the screen, then the governor automatically ramps up the speed to whatever the max has been set to. This is the reason why interactive is now the most common governor of choice for AOSP. I suppose you could root and flash a different kernel with other specialised governors like KToonses, which comes with PegasusQ, KToonsertive and others. Or even on stock you could change to other kernels and see if that helps out. I haven't really been noticing much problem with the stutter even on interactive tbh. Animations are fine, so could be that you do have some cpu intensive app causing the lag.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
The other aspects of project butter such as the vsync made a much bigger difference than the ramping up CPU. Prior to jellybean if a toast notification came up all the animations would become really choppy. Even with the CPU at low speeds the animations stay smooth as they are rendered by the GPU.
Sent from my Nexus 7 using xda premium
blackhand1001 said:
The other aspects of project butter such as the vsync made a much bigger difference than the ramping up CPU. Prior to jellybean if a toast notification came up all the animations would become really choppy. Even with the CPU at low speeds the animations stay smooth as they are rendered by the GPU.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
I agree but the TC stated that it didn't lag when he kept his finger on the screen so I assumed it was due to that particular part of Project Butter that made a difference.
Sent from my HTC One X using xda premium
There are any disadvantages to go back to ice cream sandwich 4.0 version? Now I have custom 4.4.2 and it is laggy no matter what.
P7500
Sent from my Nexus 5 using xda premium
Lior84 said:
There are any disadvantages to go back to ice cream sandwich 4.0 version? Now I have custom 4.4.2 and it is laggy no matter what.
P7500
Sent from my Nexus 5 using xda premium
Click to expand...
Click to collapse
Perhaps you could try one of the lollipop versions. They (both aosp and Omni) are really stable. If you however need 3G I would suggest the aosp rom.
There's no harm in trying them out. If you still feel that they lag to much you can always go back to stock.
I've been running the aosp rom on my wifi tab for some time now and it performs pretty great actually.
Pretty great you mean responsive? Because I use omni 4.4.2 and it's laggy no matter what I do.
Sent from my Nexus 5 using xda premium
Lior84 said:
Pretty great you mean responsive? Because I use omni 4.4.2 and it's laggy no matter what I do.
Sent from my Nexus 5 using xda premium
Click to expand...
Click to collapse
Yes, responsive. I did overclock it to 1400mhz but it's running stable. Only youtube is sometimes not the best when running 720p videos.
Not responsive :/
Is it smooth when using chrome, scrolling and doing other activities?
Tell me the best settings to get it fast with Lollipop.
P.S: i suggest the cm10.2 ROM with tabletUI if you want smooth scrolling and graphics.
Mast3rC22 said:
Is it smooth when using chrome, scrolling and doing other activities?
Tell me the best settings to get it fast with Lollipop.
P.S: i suggest the cm10.2 ROM with tabletUI if you want smooth scrolling and graphics.
Click to expand...
Click to collapse
I can only speak from my experience with the aosp rom but scrolling in Chrome is smooth, I'm also using Nova Launcher and it is overclocked to 1400 mhz. Please don't expect miracles from this old device that samsung gave up on one ago. It runs 5.1.1 as smooth as it can. Also don't expect any hard core gaming and youtube will sometimes have issues. If all these things are deal-breakers then stay with whatever you have now. I wrote this from my own experience with my own tab. My father has the same one else only that one is bone stock. Touch wiz and everything with only a handful of apps installed. And yes it runs smooth and has less "issues" but it's running 4.0.4... I hope my explanation helps you make an informed decision.
Lior84 said:
There are any disadvantages to go back to ice cream sandwich 4.0 version? Now I have custom 4.4.2 and it is laggy no matter what.
P7500
Sent from my Nexus 5 using xda premium
Click to expand...
Click to collapse
I was considering the same. I was on 4.4 omni, seemed laggy. Flashed stock ICS, which did seem snappy but still bloated. I thought I'd give AOSP 5.1 a go. Haven't over clocked anything and its definitely smoother than 4.4 omni. Very compact ROM, I installed gapps and that only set google play. Currently tested WiFi and GPS and they're working. Chrome is smooth and running flash smoothly. Auto detected resolution on YouTube.com is smooth. Haven't tried YouTube app as yet. I normally use tubemate anyway. This tab will always have trouble playing 1080p vid. Max I go now is 720. Tried and its working fine using mxplayer. 5.1 is still in social testing but the bugs are slowly being fixed. I was on ICS for a long time as it performed well. Having experienced the same with 4.4 and now upgrading to this rom , I'm happy with how smooth and responsive it is. Ticks the boxes.
My main concern is lags. I run omni 4.4 on with nova and the response is disappointing.
Most of the time, my son use it to watch movies, YouTube and some games but nothing really hard. When I take it to do some stuff on it, the lags just giving me crazy. I know that the main problem is lack of RAM but hey, with 4.0.4 it works OK.
Sent from my Nexus 5 using xda premium
Going back does mean stability. The way I look at it though is you can only put so much into a mini, but it will always be a mini, not a Ferrari. Lollipop seems to work OK but its stretching the capability of this tab. For me with minor tweaks its going OK. A goto software always on all my droids is Greenify. It kills all the apps lingering in the background and stops them from opening again unless I open them. Try it out, you need all the ram you can get outta these older tabs. With the paid version it also kills system apps like google play services which is a big ram hog. I guess the only way you'll make your mind up is give ICS a go for a few days then try LP and see what you think.
A lollipop ROM might be smoother, if there would be the "Performance" menu in the settings app (like CM12).
If anyone has got any cyanogenmod ROM, i suggest these settings:
CPU governor:
• Intellidemand/ondemand: The CPU will increase the frequency when needed. It's default in many kernels. I really suggest that, because the device will be very stable (and smooth) and the battery life will be quite good :good: ;
• Performance: The CPU frequency will be set to max setting;
• Powersave: The CPU frequency will be set to minimum setting.
CPU min frequency: 150mhz (max. 200mhz)
CPU max frequency: overclock to 1400Mhz (do not overclock to 1.5 or 1.6ghz, the cpu will freeze and might be damaged)
I/O scheduler: deadline
zRam: 18%
Resources clean: on
KSM: on
PS: Enable "Set on boot" to each menu.
Sorry for the worst english ever.
I like decatf's 5.1 AOSP rom. He put a lot of work into creating a wrapper for hwcomposer which does a better job translating some of the newer rendering apis to work with the ancient ics binary Nvidia video driver blobs. That's why videos and animations are much smoother on his rom than the alternatives and why you don't get that weird "lightning bolt" rendering effect that's been around since pershoot's cyanogen jelly bean roms. He also implemented an audio driver wrapper as well in the same vein. And if you use his TWRP version, you can format /cache and /data to use f2fs, which definitely helps with disk I/O. He even ported over Multirom so you can dual-boot, but alas, it doesn't boot Ice Cream Sandwich roms at the moment.
It's the best modern rom thus far for the original Tab 10.1. Other than proper modern and native Nvidia drivers updated for Lollipop, the only thing really holding back the original 10.1 at this point is the Tegra 2's lack of NEON support. But there's nothing decatf can do about that.
Sent from my SAMSUNG-SGH-I747 using Tapatalk