Update: the game had a problem with low-spec PC's, now if you use Chrome or Edge it runs smoothly in the browser. Still looking at why Firefox is slow.
Firefox has known issues with running anything from Godot or Unity it seems. It's becoming hit or miss whether I can play anything without issues, so it could easily just be my browser at this point.
Understandable. Well, at least I want to know that you rated the game based on design and not performance. If you want to give it another try, the update is on.