Warning! The presets may be good for all I know, but I strongly advise that anyone who does not run 1920x1080 saves their AC video settings and CSP settings before installing/selecting them, especially the AC video settings. I run 2560x1440 with high quality graphics and often get over 200fps (140 with Ilja's rain patch). When I selected one of Adam's presets it changed a lot of settings and displayed the AC screen as a 1920x1080 image in the corner of my screen. When I reset the resolution to 1440p I had all kinds of weird and inexplicable effects, like the cars going on track for a hotlap start tilted over, the driver position radically different and the handling very strange. FPS was down to 110 or so. I was unable to restore my settings without crashes and error messages, so in the end I had to delete my Documents/Assetto Corsa folder completely and start again, copying my AC installation from another back-up. It took a couple of hours to sort out everything.
The three stars are for the enjoyment i got from Adam's filters before this little episode, but I've deleted the lot now.