I am having this same issue. My PC can handle this easily
i5 3570K
Asus GTX 680 TOP
Corsair Vengeance 8gb
Asus P8Z77V- LK
Corsair HX 750
I can get 60 FPS all day but when I move my mouse the frames drop. I can look around slowly but if I make quick movements the frames plummet. Any...