Help getting lag all of a sudden

[liposek]

I reinstalled my windows and the game has lag
This does not happen in the title screen
I normaly have around 90 fps
But now I have around 40 fps
Its on every track and even in full screen mode

[Whiteracing204]

I reinstalled my windows and the game has lag
This does not happen in the title screen
I normaly have around 90 fps
But now I have around 40 fps
Its on every track and even in full screen mode

Have you tried adjusting your advanced graphic setup?