The prop animation looks perfect to me. Are you on the latest release? I actually just told SWS last week that they now have it perfect. It’s correct.
Ground handling could be more sensitive, but then it makes it hard to handle for those using keyboards/xbox/etc. The ground handling is a compromise for sure. A real RV8 is more difficult on the ground, especially after touchdown.
Rudder authority and behavior seems very well done to me.
I’m not sure what you are talking about with it feeling like it needs “opposite”. The only way I was able to replicate your complaint about it “burying a wing” in a crosswind was to hold upwind aileron right to takeoff speed, which is not realistic. IRL the stick needs to be centered when those wheels leave the ground. I’m not sure what would happen IRL if aggressive upwind aileron was held right up to takeoff speed, and I’m not willing to try. The 8 has a roll rate of around 100*/sec and it’s extremely sensitive in roll.