>>719020325
UE5.
UE5 is the problem here.
Version five, and its shitty, TV media production -oriented default settings.

UE4 runs fine out of the box. Identical scenes will run 400% faster in UE4 by default, and since there's no Lumen causing bloat and noise, nor Nanite literally DUPLICATING meshes, things will look better as well and won't need upscalers.

BTW, here's UE3, from 15 years ago.