Way to go skuzzy on the running programs list, was looking for something that simple and easy to understand!
As i am sure we all should know by now AH recommends or encourages you to turn off your anti virus while playing, and it is a good idea!
I use an online computer checking company called PCpitstop which checks your cp for performance and possible problems (this is a free service by the way).
Recently did a check after installing Mcafee virus scan and was amazed at how much cpu it uses to run! I went from normal 2%-5% to 38%-42% cpu usage during the test!
So now i turn off mcafee while playing and have seen my fps go up, not a giant leap but better than it was, and also game seems to play better.