Thank you for your interest in my game and for bringing my attention to this issue! I am sorry the demo wasn't working for you. When I get a chance, I will see if I can identify what's causing the issue. I've also been considering whether or not I want to migrate my project to a different game engine that has good web build performance.
No worries at all :)
Don't hesitate to ask me if there's anything specific I can do to help troubleshoot the issue (print out logs or run a command or whatnot) once you get to it (there's no rush).
Oh I see ! Good luck with maybe migrating engines :)
Btw my laptop is very old so that might be the issue, maybe it's not the game :)