I've been experiencing really terrible performance on Battlefield 3 and Diablo III recently, everything's on the lowest settings and I still get awful fps, sometimes in the 8-10 range. I've completely reinstalled windows 7 and have reduced all the OS' to maximize performance, updated all the drivers. 8 GB of DDR3. My processor's an I5-660 and my card is a GTX 550ti. Any recommendations would be grealty appreciated.