Random fps drops in-game

[bmbsteez]

Hi there I currently have a studio 1747 from Dell. I play some video games on it mostly from steam such has CS, CSS, the new CSGO TF2 etc. Lately ive been getting random FPS drops in game. I could be running fine at about 150fps for 5-20 mins then all of a sudden it drops to about 20. At first I thought it was caused by overheating but then I went out ad bought a cooling pad with three cooling fans to put underneath it and I'm still getting this problem. Im beginning to think that maybe this laptop just cant handle pc gaming? But my starting FPS is at about 120-125 before these drops. Any solutions would be great!

 

[bmbsteez]

bump bump bump

 

[Tmagic650]

What antivirus software are you using?