No-frills CPU Control is a tool you can use on your Android phone to quickly set the CPU frequencies and governor to use. It allows you to use the highest frequency your phone supports and gain some precious FPS in your preferred game, or go down to the lowest frequency and gain some more juice when your phone is sitting idle. All of this without any memory footprint or services running in the background! https://play.google.com/store/apps/details?id=it.sineo.android.noFrillsCPU