Fps/ping issues.

My regular fps (60-100) drops to as low as 5 fps and stays there for a couple minutes and shoots back up for a couple minutes and back down again. soo annoying. dont say get gamebooster or any of that because its not about my computer, its about the game. please tell me if any of you have an actual fix for this. also, ever since i got windows 7 my ping went from 9-12 to 35-60 .. what can i do there? thanks.