Okay..so...
I tested on my phone with standard apps/games, nothing changed.
I tested on my phone with PlayStation 2 emu psx2 playing final fantasy X AT mi'hen road (the most laggy place ever on emulator). I did noticed a bit less lag and more smooth. But but worth it. The app doesn't eat battery pretty fast and my phone IS strong in battery power. ( I have a Doogee S98)