So i have a rtx 2080ti with i9 900k and I've been having an average of 90-115fps with CM/SOL 2.0/ CSP 1.70 but i noticed after a race the other day my frames were lower than usual (sometimes dropping as low as 30fps) and I switched ppf to see if it helped and it did a little but when I switched back to the former ppf, the game got worse. I changed a few settings to see if I could get performance back and I cant. Switching from 1080p to 4k has very little affect . what settings cause the most damage to performance? any help would be awesome. I've already checked the windows directory thing and that didn't work.