Wow I was just doing some attempts for this level. Only thing I can suggest for lag is running the game in a smaller window. If using the browser version you could try downloading it and see if that helps as well.

Ty, it has since been fixed

xd that is a really fast time

Thanks for playing, it was fun to compete against your times

RIP the 6.9, that would have been insane

Wow that's a very cool find!