I always use Process Hacker 2 (Custom task manager) to change a game's priority (both CPU and IO, ie hard drive read/writes) to try and see if it improves performance.

PUBG is literally unplayable for me without setting both CPU and IO priorities to high. Constant frame drops and low fps otherwise. As soon as I change the process priority the game becomes buttery smooth 60fps locked. I've noticed performance improvements in AC: Origins using this as well, mostly in loading times.

I can't say why it works, maybe Windows does something behind the scenes that lowers a process priority, I don't know, but it sure does work for me in some games.

The problem is, it seems Easy Anti-Cheat doesn't allow us to change the process priority (access denied). Same thing with Windows default task manager.

Would there be any way of not locking the process like that to check if we can get any performance improvement?

gtx 1060 6gb
i5 6600k 4.4ghz OC
8gb ram 2400