Ok So basically my PC (GTX 770, i5 4670k, 8GB Ram) usually lags every few seconds therefore causing games such as Gotham City Imposers to go to 0 fps every like 3-5 seconds and then right back up to its usual. I don't know if it's because i reformatted my PC because i've even tried cccleaner to fix the registry files. Please help me!?