Since when are you using your adjusted nvidia profile? A few builds ago ISI made new AA levels for rF2, optimized for different graphics card.
It might be useful for you to revert back to default settings and clean up your install, player.json and config.ini. If you are not happy with it, you can still adjust what you like in nvidia.
Example: Click on the picture to zoom in:
- Both graphics maxed out and highest AA level at Atlanta Motorsport Park.
- I guess Bela used to have or uses an adjusted nvidia profile.
- I'm just using the in game AA levels.