Check out the tunes by JSR Chronic. They are performant and easy2handle.
If you can’t get warm even with them, consider the more simmy bracket of simcades isn’t yours and accept yours are the more arcady ones.
The driving-fun of FM pretty much roots in succesfully controlling the cornering near limits instead of hitting the ideal line and then be able to accelarate full bonkers, like in grid and other arcady simcades.
Only other remaining gamebound solution would be to activate rumble if you haven’t yet. Its very well implemented and delivers worthy feedback where your cars grip criticality begins.
I couldn’t drive without.