I don't know about that. I have ACC highest settings and I'm getting ~90 fps in 4k. (didn't need 4 3090's either lol)
AC can look good yes, but I was getting 60-70 fps because something isn't playing well with each other. And that's pretty much high on a few settings but there's only a hundred of them in CM so who knows. On top of that, some of the X-Wing fighter trees, stagnant cartoon crowds and shadows breaking plane with the track break the immersion among other things, like sounds missing or black objects appearing or whatever isn't working in CSP that particular day. It looks real good for it's age though when you get it straightened out. That's part of the problem though. It's always changing and it's this PP filter or that PP filter now or this doesn't work with that or now you have to reset SOL again. Get's to be a bit much but finding consistency is key.
I don't reshade or any of that though. On a LG CX 55" OLED until I go VR soon enough. How I get better framerate on ACC than AC is beyond me.
ACC is pretty consistent though. The dynamic track objects and people, more detailed textures, drying line on wet track, rolling starts and the biggest thing, you turn it on and it just works.
Will never meet the content desire AC fulfills though.
