Input lag pc

So i installed this game few days ago and it worked perfectly but then i changed my graphics card from gtx 960 → gtx 1070 and i turned up the graphics settings with the new graphics card and game runs perfectly 80-100fps but i have huge input lag or whatever its called (when i press A or D to turn it has really big delay or it keeps turning without pressing the key.)
i tried lowering graphics settings but that doesnt seem to fix the issue only thing i found that helps with this issue is to set forzahorizon.exe priority from task manager to below normal or low from normal but with that i have lower fps and rendering issues and setting priority to high,input lag just gets worse. Does anyone know fix to this?