Came back to the WebGL build on my Windows PC/Firefox. Last time I had a number of tabs running in the background and upon seeing the initial performance switched to the download pretty quickly. This time I had it running in a solo tab and gave it a minute. After pressing start, the music continued to play without issue but the game would get stuck on a frame for like 2-7 seconds, then move forward a bit, then get stuck again. After about 45 seconds though, the stuttering seemed to subside and the game played pretty smoothly at maybe ~30 fps or so. Probably should have given it a bit more time on that first web playthrough—the stuttering does go away after a bit.
Best of luck with any future development! It'd be neat if you do come back to this, but regardless, you’ve made a very cool project for this jam.