[PC] Stuttering can be removed by entering basic graphic option

I was try a lot of thing. Disabled my Norton antivirus, uninstalled MSI AB, tried 3-4 different AMD driver, FPS cap, Vsync on / off, and still have the stutter problem. I'm playing AC, ACC, LMU, and this games are not have stutter problem, just the EA WRC. The problem is the Unreal Engine...