I just upgraded my gpu to a nvidia Geforce gtx 770. By looking at other peoples system, they're getting avg of 40-50 fps on battlefield 4. But I'm getting around an average of 20-30 fps and most of the time it lags and freezes. It also has about 20 avg fps in Metro Last Light on ultra, but I should at least be getting 30. What's wrong here?
CPU: AMD Athlon x4 750k
GPU: Nvidia Geforce gtx 770
Motherboard: MSI FM2-A75MA-P33
Hard Drive: Seagate Barracuda ST1000DM003 1TB
PSU: CORSAIR CX series CX500 500W
CPU: AMD Athlon x4 750k
GPU: Nvidia Geforce gtx 770
Motherboard: MSI FM2-A75MA-P33
Hard Drive: Seagate Barracuda ST1000DM003 1TB
PSU: CORSAIR CX series CX500 500W