Play with anti-roll bars and differential settings. Increase both settings for more grip but less cornering speed. Then (from the little I've gathered thus far) I feel like a few units lower front wing compared to rear is better as the engine braking oversteer is strong, the car would snap very easily. So it sort of provides understeer to balance the oversteer.
I'm still struggling with ride height/weight distribution though
But on a track such as Spa I noticed ride height needs to be pretty high in order to not spin in Eau Rouge
The default ride height is very close to optimal I'd imagine.