So, I was playing AVA Europe Server, even though I was suppose to play on North America but there was hardly anybody in North America server due to late night, and out of nowhere, I'm getting, like the description says, odd and unreliable FPS, like it keeps on freezing for half a second, and goes fine, but it does it again. I've been trying to fix this, adjusting almost every quality options there is, and it still became unreliable and unplayable. The graphics went fine back then until now and nothing on my computer has been updated for the past couple weeks.
Is there a certain options that can fix this? Only thing I'm running is Avast and Skype.
Intel Core 2 Quad 2.33GHz
Gigabyte 550 GTS OC1 1.5GB
Windows XP Professional SP3 32-Bit.