I thought I'd fixed that - in some lower end hardware the low rez textures don't point sample, and instead filter, making some stuff look less blurry/pixelated if a normal map is what's affected. Same with the mouse issue - not sure why that one even happens in that scene specifically.
Thank you very much for playing though! I'm glad the game wasn't too long to overstay it's welcome, and not too short that it felt like a speed bump.