This game is practically made for speedrunning. I've done quite a few levels myself. My main question is: are there any ways to move faster in this game yet?

1 year later I reply to you, there is 1 way to move faster, and it's with weapon knockback. I did measurements, that prove, duck travels faster when shooting+sliding. But is it worth it? Depends on weapon, higher knockback = faster traveling.

Also some mods add items that increase duck's overall speed