Porting custom ROM to Chinese tablet. RK3126 - Android Q&A, Help & Troubleshooting

Hi there fellas. I recently bought a 7" Chinese branded tablet (TABLET INNOVATOR 7DTB41) for 50€. The tablet has some good specs for its money (see at the end of my post). It comes with a 5.1.1 lollipop phone ROM full of bloataware. First boot and the device was noticeably slow at every task. I proceed rooting it with kingroot and installed a sys app uninstaller to uninstall all the bloataware. There was the point I understand the ROM was a phone ROM because inside there were apps like Phone, SMS, Call history and so on. Anyway, after the cleanup the device was running significally faster, but still there are lag spikes.. What I want the experts here to ask is, if I can port a custom 4.4.x ROM ( like CM ) to get the best performance.
Specs:
<<< System >>>
Manufacturer: rockchip
Model: 7DTB41
Brand: rockchip
Board: rk30sdk
Device: rk312x
Hardware: rk30board
Platform: rk312x
Product: rk312x
Serial: FNM8******
Installed RAM: 1 GB
Total Memory: 998 MB
Available Memory: 278 MB
Internal Storage Total Space: 12.87 GB
Internal Storage Free Space: 9602 MB
Device Features: android.hardware.audio.low_latency
android.hardware.audio.output
android.hardware.bluetooth
android.hardware.bluetooth_le
android.hardware.camera
android.hardware.camera.any
android.hardware.camera.autofocus
android.hardware.camera.flash
android.hardware.camera.front
android.hardware.ethernet
android.hardware.faketouch
android.hardware.location
android.hardware.location.gps
android.hardware.location.network
android.hardware.microphone
android.hardware.nfc
android.hardware.nfc.hce
android.hardware.screen.landscape
android.hardware.screen.portrait
android.hardware.sensor.accelerometer
android.hardware.sensor.barometer
android.hardware.sensor.compass
android.hardware.sensor.gyroscope
android.hardware.sensor.light
android.hardware.sensor.stepcounter
android.hardware.sensor.stepdetector
android.hardware.touchscreen
android.hardware.touchscreen.multitouch
android.hardware.touchscreen.multitouch.distinct
android.hardware.touchscreen.multitouch.jazzhand
android.hardware.usb.accessory
android.hardware.usb.host
android.hardware.wifi
android.hardware.wifi.direct
android.software.app_widgets
android.software.backup
android.software.device_admin
android.software.home_screen
android.software.input_methods
android.software.live_wallpaper
android.software.managed_users
android.software.pppoe
android.software.print
android.software.voice_recognizers
android.software.webview
<<< CPU >>>
SoC Model: RockChip RK3126
Core Architecture: 4x ARM Cortex-A7 @ 1200 MHz
Manufacturing Process: 40 nm
Instruction Set: 32-bit ARMv7
CPU Revision: r0p5
CPU Cores: 4
CPU Clock Range: 216 - 1200 MHz
Core 1 Clock: 1008 MHz
Core 2 Clock: 1008 MHz
Core 3 Clock: 1008 MHz
Core 4 Clock: 1008 MHz
CPU Utilization: 41 %
Scaling Governor: interactive
Supported ABIs: armeabi-v7a, armeabi
Supported 32-bit ABIs: armeabi-v7a, armeabi
AES: Not Supported
NEON: Supported
SHA1: Not Supported
SHA2: Not Supported
<<< Display >>>
Screen Resolution: 600 × 1024
xdpi / ydpi: 160 / 160 dpi
GPU Vendor: ARM
GPU Renderer: Mali-400 MP2
GPU Cores: 2
Refresh Rate: 77 Hz
Default Orientation: Landscape
OpenGL ES Version: 2.0
GPU Version: OpenGL ES 2.0
OpenGL ES Extensions: GL_EXT_debug_marker
GL_OES_texture_npot
GL_OES_vertex_array_object
GL_OES_compressed_ETC1_RGB8_texture
GL_EXT_compressed_ETC1_RGB8_sub_texture
GL_OES_standard_derivatives
GL_OES_EGL_image
GL_OES_depth24
GL_ARM_rgba8
GL_ARM_mali_shader_binary
GL_OES_depth_texture
GL_OES_packed_depth_stencil
GL_EXT_texture_format_BGRA8888
GL_OES_vertex_half_float
GL_EXT_blend_minmax
GL_OES_EGL_image_external
GL_OES_EGL_sync
GL_OES_rgb8_rgba8
GL_EXT_multisampled_render_to_texture
GL_EXT_discard_framebuffer
GL_OES_get_program_binary
GL_ARM_mali_program_binary
GL_EXT_shader_texture_lod
GL_EXT_robustness
GL_OES_depth_texture_cube_map
GL_KHR_debug
GL_ARM_shader_framebuffer_fetch
GL_ARM_shader_framebuffer_fetch_depth_stencil
<<< Network >>>
<< Telephony >>
Phone Type: None
<< Wi-Fi >>
State: Enabled
SSID: *****
BSSID: *****
Hidden SSID: No
MAC Address: *****
Signal Strength: -44 dBm (Excellent)
Link Speed: 72 Mbps
Frequency: 2462 MHz
Network ID: 1
Gateway: 192.168.43.1
DNS1: 192.168.43.1
DHCP Lease Duration: 1 hour
5 GHz Band: Not Supported
Wi-Fi Direct: Supported
<<< Battery >>>
Power Source: A/C Charger
Level: 32 %
Status: Charging
Health: Good
Technology: Li-ion
Voltage: 3.860 V
Charge Rate: 421 mA
Capacity (Reported by Android): 6700 mAh
<<< Android >>>
Android Version: 5.1.1 (Lollipop)
API Level: 22
Rooted Device: Yes
Android ID: 2af373199931bbef
Build ID: 7DTB41_20160711
Codename: REL
Fingerprint: rockchip/rk312x/rk312x:5.1.1/LMY47V/sss07301514:userdebug/test-keys
ID: LMY47V
Incremental: eng.sss.20160730.151241
Java Runtime Version: Android Runtime 0.9
Java VM Version: ART 2.1.0
Java VM Heap Size: 48 MB
Kernel Architecture: armv7l
Kernel Version: 3.10.0 ([email protected]) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #25 SMP PREEMPT Sat Jul 30 15:07:39 CST 2016
Tags: test-keys
Type: userdebug
Google Play Services Version: 9.4.52 (230-127739847)
OpenSSL Version: OpenSSL 1.0.1j 15 Oct 2014
ZLib Version: 1.2.8
ICU CLDR Version: 25.0
ICU Library Version: 53.1.0.1
ICU Unicode Version: 6.3
Android Language: English (United States)
Configured Time Zone: Eastern European Summer Time (UTC+03:00)
UpTime: 00:48:01
<<< Devices >>>
<< Rear-Facing Camera >>
Resolution: 1.9 MP (1600 × 1200)
Focal Length: 35.0 mm
Focus Modes: fixed
Video Snapshot: Supported
Video Stabilization: Not Supported
Zoom: Supported
Smooth Zoom: Not Supported
Auto Exposure Locking: Supported
Auto White Balance Locking: Not Supported
<< Front-Facing Camera >>
Resolution: 0.3 MP (640 × 480)
Focal Length: 35.0 mm
Focus Modes: fixed
Video Snapshot: Supported
Video Stabilization: Not Supported
Zoom: Supported
Smooth Zoom: Not Supported
Auto Exposure Locking: Supported
Auto White Balance Locking: Not Supported
<< USB Device - Linux 3.10.0 ehci_hcd EHCI Host Controller >>
Manufacturer: Linux 3.10.0 ehci_hcd
Product: EHCI Host Controller
Serial: 101c0000.usb
Device ID: 1D6B-0002
Device Class: 09 / 00 (Full-Speed Hub)
Device Protocol: 00
Revision: 0310
Supported USB Version: 2.00
Current Speed: 480 Mbps
<< USB Device - Linux 3.10.0 ohci_hcd RK OHCI Host Controller >>
Manufacturer: Linux 3.10.0 ohci_hcd
Product: RK OHCI Host Controller
Serial: 101e0000.usb
Device ID: 1D6B-0001
Device Class: 09 / 00 (Full-Speed Hub)
Device Protocol: 00
Revision: 0310
Supported USB Version: 1.10
Current Speed: 12 Mbps
<< USB Device - Linux 3.10.0 dwc_otg_hcd DWC OTG Controller >>
Manufacturer: Linux 3.10.0 dwc_otg_hcd
Product: DWC OTG Controller
Serial: 10180000.usb
Device ID: 1D6B-0002
Device Class: 09 / 00 (Hi-Speed Hub with single TT)
Device Protocol: 01
Revision: 0310
Supported USB Version: 2.00
Current Speed: 480 Mbps
No OpenCL devices found.
No CUDA devices found.
No Vulkan devices found.
No PCI devices found.
<<< Thermal >>>
No thermal sensors found.
<<< Sensors >>>
Gravity sensor:
Compass Magnetic field sensor:
Orientation Sensor:
Gyroscope sensor:
Proximity sensor: 9.0 cm
Light sensor:
Pressure sensor:
Temperature sensor:
Rotation Vector Sensor:
Gravity Sensor:
Linear Acceleration Sensor:
<<< Apps >>>
AIDA64: com.finalwire.aida64(v1.40)
BSPlayer FREE: com.bsplayer.bspandroid.free(v1.27.190)
BusyBox Free: stericson.busybox(v42)
ES File Explorer: com.estrongs.android.pop(v4.1.2.4)
SuperSU: eu.chainfire.supersu(v2.76)
System App Safe Remover: com.jumobile.manager.systemapp(v3.6.2019)
<<< Codecs >>>
OMX.google.mp3.decoder: audio/mpeg
OMX.google.amrnb.decoder: audio/3gpp
OMX.google.amrwb.decoder: audio/amr-wb
OMX.google.aac.decoder: audio/mp4a-latm
OMX.google.g711.alaw.decoder: audio/g711-alaw
OMX.google.g711.mlaw.decoder: audio/g711-mlaw
OMX.google.vorbis.decoder: audio/vorbis
OMX.google.opus.decoder: audio/opus
OMX.google.raw.decoder: audio/raw
OMX.google.aac.encoder: audio/mp4a-latm
OMX.google.amrnb.encoder: audio/3gpp
OMX.google.amrwb.encoder: audio/amr-wb
OMX.google.flac.encoder: audio/flac
OMX.rk.video_decoder.avc: video/avc
OMX.rk.video_decoder.m2v: video/mpeg2
OMX.rk.video_decoder.vp8: video/x-vnd.on2.vp8
OMX.google.vp9.decoder: video/x-vnd.on2.vp9
OMX.rk.video_decoder.h263: video/3gpp
OMX.rk.video_decoder.m4v: video/mp4v-es
OMX.rk.video_decoder.flv1: video/flv
OMX.rk.video_decoder.vc1: video/vc1
OMX.rk.video_decoder.mjpeg: video/mjpeg
OMX.rk.video_decoder.hevc: video/hevc
OMX.rk.video_encoder.avc: video/avc
OMX.google.h264.decoder: video/avc
OMX.google.vp9.decoder: video/x-vnd.on2.vp9
OMX.google.h263.encoder: video/3gpp
OMX.google.mpeg4.encoder: video/mp4v-es
OMX.google.vp8.encoder: video/x-vnd.on2.vp8
<<< Directories >>>
Data: /data
Root: /system
Java Home: /system
Download/Cache Content: /cache
<< External Storage >>
Primary External Storage: /storage/emulated/0
External Files #1: /storage/emulated/0/Android/data/com.finalwire.aida64/files
DCIM: /storage/emulated/0/DCIM
Downloads: /storage/emulated/0/Download
Notifications: /storage/emulated/0/Notifications
Ringtones: /storage/emulated/0/Ringtones
<< Mount Points >>
/: Device: rootfs
File System: rootfs
Read-Only
/dev: Device: tmpfs
File System: tmpfs
Read-Write
/dev/pts: Device: devpts
File System: devpts
Read-Write
/dev/memcg: Device: none
File System: cgroup
Read-Write
/dev/cpuctl: Device: none
File System: cgroup
Read-Write
/dev/usb-ffs/adb: Device: adb
File System: functionfs
Read-Write
/proc: Device: proc
File System: proc
Read-Write
/sys: Device: sysfs
File System: sysfs
Read-Write
/sys/fs/selinux: Device: selinuxfs
File System: selinuxfs
Read-Write
/sys/fs/cgroup: Device: none
File System: tmpfs
Read-Write
/sys/fs/cgroup/memory: Device: none
File System: cgroup
Read-Write
/sys/kernel/debug: Device: /sys/kernel/debug
File System: debugfs
Read-Write
/acct: Device: none
File System: cgroup
Read-Write
/mnt/asec: Device: tmpfs
File System: tmpfs
Read-Write
/mnt/obb: Device: tmpfs
File System: tmpfs
Read-Write
/system: Device: /dev/block/platform/1021c000.rksdmmc/by-name/system
File System: ext4
Read-Only
/cache: Device: /dev/block/platform/1021c000.rksdmmc/by-name/cache
File System: ext4
Read-Write
/metadata: Device: /dev/block/platform/1021c000.rksdmmc/by-name/metadata
File System: ext4
Read-Write
/data: Device: /dev/block/platform/1021c000.rksdmmc/by-name/userdata
File System: ext4
Read-Write
/mnt/shell/emulated: Device: /dev/fuse
File System: fuse
Read-Write
/storage/emulated: Device: tmpfs
File System: tmpfs
Read-Write
/mnt/external_sd: Device: /dev/block/vold/179:33
File System: vfat
Read-Write
/storage/emulated/0: Device: /dev/fuse
File System: fuse
Read-Write
/storage/emulated/legacy: Device: /dev/fuse
File System: fuse
Read-Write
<<< System Files >>>
Buddy Info: /proc/buddyinfo
Build Properties: /system/build.prop
Character & Block Devices: /proc/devices
Command Line: /proc/cmdline
CPU Information: /proc/cpuinfo
Default Properties: /default.prop
Execution Domains: /proc/execdomains
File Systems: /proc/filesystems
Frame Buffer Devices: /proc/fb
Hosts: /system/etc/hosts
Interrupts: /proc/interrupts
Input Devices: /proc/bus/input/devices
I/O Ports: /proc/ioports
Kernel Version: /proc/version
Load Average: /proc/loadavg
Locked Files: /proc/locks
Memory Information: /proc/meminfo
Memory Map: /proc/iomem
Misc Drivers: /proc/misc
Partitions: /proc/partitions
Statistics: /proc/stat
Swap Spaces: /proc/swaps

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Anyone some kind of help ? Any directions to look for? Anything you tell me is appriciated.. Thanks

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Were you able to get any help in this regard? I have an RK3126 with android 4.4.4 and I wish to upgrade it to at least or more. Do you have any idea on to how to get this done?