Thanks for letting us know!
I'm sorry the game isn't very optimized. As a jam game, we didn't really go back to it after the few initial bug fixes.
There's going to be a small update to fix a few bugs and other problems soon (can't say the exact date yet, but I'm working on it right now). I'll take a look and see if I can address this issue and get it to run at least a little bit better.
There will be an announcement here on Itch and on Twitter (http://twitter.com/potentiallyodd) once it's live.
-Jay