This game(UE5) is not kind to old device, my laptop looks like going to catch fire while running this. And my screen is 1440p, but this game option is not have this one, what's worse, the FPS is too low to play.

I was inspired by this comment, thanks for @RMDXxdmr.

1. Type win+r, and input
2. Find the file named GameUserSettings.ini
2. Change sg.ResolutionQuality, 50~80 is fine.
3. Change ResolutionSizeX and ResolutionSizeY for your screen. In my case is that

And if your game still sucks, try to reduce options in different scene, mostly RefrectionQuality and Global ILLumination Quality, they affect video quality differently in every scene as well. They wouldn't be complex.

Wish that could be useful.