v1.7.1 low fps

i was playing on =hog= couple days ago on fallujah west on my only pc i was getting a fps drop i can run newer games without this here are my specs
Processor: AMD FX 8350
RAM: Corsair 16GB DDR3
Motherboard: Asus M5A97 2.0
Operating System: Windows 10 Home 64 bit
Video Card: EVGA GTX 1060 3GB