1) Through TWRP, flash the kernel H990_v0.7-BETA4-mk2000.zip for LOS 18.1 or H990DS_v2.2-mk2000.zip - for Android 8.0.0 stock firmware
2) Install, for example, the software kernel manager, Franco kernel manager or external kernel manager and flash the BCL_disabler.sh file through the internal script manager tool so that it is executed at system startup and starts it for execution by selecting "Run".
3) Go to the CPU and set the small and large core to "Performance" in the CPU governor, save this save profile for autoload.
4) On Android, go to Settings - Accessibility and set the Franco Kernel Manager software to Enabled - required!
5) Attention! after updating the system, updating system applications, GAPP or installing new programs, or uninstalling software (any change in the composition) transfer to what may be necessary after each installation / removal, reflash the H990_v0.7-BETA4-mk2000.zip or H990DS_v2 kernels. 2-mk2000.zip via TWRP, because. the camera, especially in OpenCamera, starts to freeze. In the graphics driver for the application (in particular, for OpenCamera), set "System graphics driver" instead of "Default". Turn off OpenCamera software from power saving.
6) Attention! It was found through the SystemPanel 2 software that when the OpenCamera software was running, the Gallery, Photo and ES Explorer software was launched immediately after 5 seconds and the reader overused the processor from 30 to 75% (!!!), as a result of which the core frequency immediately dropped. Requires stopping these applications (stopping, using it in the background and transferring data in the background).
7) Through the Autorun Manager software, common unnecessary processes that strain the system.
8) Through the software SystemPanel 2, AIDA64, FKM, check that the core frequency is at the kernel level, and the total processor load does not exceed 15-20% for all cores and for all applications and that the performance regulator profile is installed and that Android through special features picked up (should be enabled) FKM work with moods above the settings.