Insane Input lag?

[vNazaah]

Hi, sorry for my bad english, i'm italian.

When i play bo2 Plutonium, my input lag is literally insane, like i move the mouse and after 0.1 sec he moves, and not so "precise"...

This is strange bcz i always played this game with no input lag problem, just this time i downloaded the game, this problem comed out

I have a 3k+ Gaming Pc, so is not an hardware problem, pls help me !!