PC Performance issues

Played fm half year ago for the last time, today i decided to jump in again. I noticed fps drops to 50fps, (i had 90-120fps before) so what changed? I play on a 4070ti and ryzen 7 5800x (1440p) So my setup should be no Problem. I also noticed 24 cars on the grid, maybe thatswhy it is more demanding. Any solution to get more stable fps?