Hey there :) Sorry for taking a while to get back to you! I have just uploaded a macOS version of the game, so if you'd like to play you could give that a go. You can follow the instructions here once you've downloaded it: https://docs.godotengine.org/en/latest/tutorials/export/running_on_macos.html#app-is-signed-including-ad-hoc-signatures-but-not-notarized
I don't have a mac unfortunately so I haven't tested it, but generally the desktop builds do have much less stuttering than the web build.
I've also added controller support :)
Either way, thanks so much for checking out my game!