No it is not possible to flash just any kernel or anything along those lines at this time unless you wish to be a tester on this .
First thing .Make a TWRP backup of entire system in case you need to restore device ..
You can customize further with xposed and gravitybox on stock rom . Greenify will also help with battery
First thing .Make a TWRP backup of entire system in case you need to restore device ..
You can customize further with xposed and gravitybox on stock rom . Greenify will also help with battery