This one is a performance update.
A while back I upgraded Unity versions and we lost a bunch of frames. It was especially rough while driving near the proshop.
Over the last few months I have tried various things to help bring the frames back to a reasonable rate and made some small improvements along the way but it was brought to my attention it's still not good enough, and I very much agreed.
I spend the last couple days building some tools to better diagnose what the issues were causing the frame loss, and came up with a solution to get the game back to where it was about a year ago.
While driving around the proshop is still a bit chunky, you should see a major improvement in general to the frame rate.
Have a great weekend!