i suddenly lose fps !!!

[wesam999]

please HELP when i play games life max payne 3 or cs:s i get 60fps but, suddenly i lose a lot of fps then after about 5 minutes it goes back the way it was on 60fps this thing keeps happening to me and i really want to fix the problem

 

[Lman8786]

Whats the temperatures while gaming?
Use a program like CPU-Z or Speccy to check while running your game and at idle temperatures.