I decided to try upgrade from KitKat 4.4.4, so I flashed CM13 + Update 5 + gapps + supersu. I'm surprised how slow and laggy the result is comparing to stock firmware. I cannot recommend this ROM deffinitely.
/*
* [U]YOUR WARRANTY IS NOW VOID.[/U]
*
* I'm not responsible for bricked devices, dead SD cards,
* or you getting fired because the alarm app failed.
* Please do some research if you have any concerns about features included in this ROM.
* Before flashing it! YOU are choosing to make these modifications.
*/