Plutonium

hi! how do i delete custom camos from the files? there are so many files and i dont know how to find is it a way to restore all the files? i tried to delete the game 2 times and that dosent work.

when i start my ps4 controller and start playing iw5x and iw4x and t6 my game starts laggin in periods and like it goes 1 min and the lag comes and then it stops and then it comes agian please help me