I played around with multisampling and anisotropic filtering and those make a decent difference when maxed, but still for me, the texture qualities vary wildly. Also with super sampling I have tried with default and 1.5X so far. With everything on max I'm left with 0-5% performance headroom. Reducing shadows to medium brought that headroom up to 20-30% with very little visual difference.
I use Ribadelles ascent course to test when I'm changing settings, as courses like Monaco seem to not highlight the shortcomings so much. If you go off the road down into the hills slightly (5-10 meters)