[Jaboler]

Well Zh3r0, I am 95% sure the reason why it lags is because of a malware. 2 weeks ago someone had this problem too, tried everything and he haven't fixed it, only after formatting the PC he said it was the malware's work and everything was fixed, so I recommend formatting it already or scan your PC and delete the virus. (If the anti-virus will find it of course).