Something is strange on my end, I think.
I have downloaded all files again and re-installed everything, deleted the temp folder and so on.
The first match was very heavy, I could feel the players taking their time to accelerate and turn around. The pace was noticeable slower (the way I like it).
But just the next match (right after my 1st one) was waaay faster and everything felt floaty, all the weight gone...i don't get it.
I will check what happens when I delete the temp folder after every match and start FMM with cleaning the ModData.
Apart from that you created a fantastic heavy, authentic and simulation-driven GP! The games feel a bit harder to score and win, but when you do, you know why you won (or lost). Brilliant!