Game fps drops to 1 after some minutes

[vinitjk 10]

After i join any server, FPS its ok, around 30~40.. but after some minutes, fps drops to 1, even if i disconnect from the server and back to the main menu fps stay on 1.. anyone knows how to fix it?

[sgthunter 1]

I had this on my PC that used windows 7 32bit... that operative system seems to use less than 4gb RAM which caused the game to have 1fps...

on a 64bit system it used full 8 gb RAM so you can play for an hour before your fps drops to 7 :o