Whenever i'm bad at the game i play cybergrind for a while at 360p then when I change it back i'm shocked at how crisp everything is. I do the same with setting a custom colour palette so everything appears more saturated
ULTRAKILL has settings for 1080p, 720p, 480p, 360p, 240p, 144p, and 36p. And also whatever the last bit was, which was like max vertex warping or something, made it impossible to see enemies' textures.