So I've upgraded my PC to an i3-6100 and a RX 460, with 8GB RAM. So far it's working like a wonder on games like Witcher 3 and Fallout 4, Rise of the Tomb Raider. However, I'm having troubles in GTA V. I get high FPS drops frequently, and the FPS isn't that high anyway. It happens especially in city and when i quickly turn my screen. I've monitored my PC, and the i3 is working at around 80-90%, and the RX has a lot of spikes from 100 to 0-30. While it's still playable, I know it can be much smoother. I should have the latest drivers since I upgraded just 2 weeks ago, and I'm playing at 1080p High Settings, with tesselation and AO turned off(Game not above the 2GB VRAM limit). Is there a fix?