when i played this game the grphics are all in normal and ts not at all lagging. the problem is in normal settings the graphics are super pixelized and i dont know why

Hit Reset on the graphics and/or readjust the resolution scale, setting it to something really low and then back to really high, if its not already really low.

Resolution scale can make it super duper pixelated.

in the event that res scale isn't the culprit though, there's some minor combinations that can cause it, but the Dev has previously recommended resetting the in-game graphics and most have claimed it working, from what I've read.