If you play modded celeste, trust me. Get the Motion Smoothing mod. If you have a >60hz monitor, it looks so much better. Genuinely. The game by default is locked to 60FPS, but this unlocks it without breaking mods or physics, so much so that you can replay TASes with it!! genuinely a gamechanger. Also makes it so the camera isn't locked to the pixel grid, which makes it move way more smoothly. I insist you install this, it makes everything way better.
gamebanana.com/mods/514173
