ok so i got a Graphics card off of craigslist gtx 970 msi 4gb and tested it when the guy showed me the card and it worked wonders at his place. i take it to mine and it works but doesn't preform as well. do i need to update my drivers or what?? i dont quite understand? i get about 30fps when playing payday 2 and about 45 fps playing gta . i just dont understand.