So I recently installed a program, and after this I get massive fps drop/ freeze lag when I move my camera around with my mouse.

Virus you might say but I really doubt it. It's a well known program with no negative feedback and alot of ppl use it. I run a virus check just to check and I found nothing.

Basicually something fúcked up when I installed this program, is there any way to figure out what it is/ how to fix it?..

I hate reinstalling windows but I guess Ill have to do taht soon..

note: iam normally running wow 70-100 solid fps at all times. Now when Iam in a zone where i have 100fps and i try to turn the camera, the game freezes for a split second.