After removing a virus, I have been getting bad lag in games which I should and have been able to run with no problem. I first thought some malware was still left over sapping up my computer's resources, but that isn't the problem. The details relating to the virus removal are in this thread: http://www.bleepingcomputer.com/forums/t/491619/browser-hijacker-causing-problems/page-2#entry3030263
I also do not think it could be heat problems, as my computer would never go above 70-74 degrees Celsius I also just cleaned out the fan and replaced the thermal paste. Even with the cleaning, games still make my CPU usage jump up to 30-40%. Could there be damage left over from the virus or is there some problem I'm not seeing?