Thanks for playing, sadly Firefox based browsers have not been kind to us performance wise, but it seems to be a widespread Godot 3D WebGL export issue since I've had it happen with a lot of other Godot games I've tried.
It's unfortunate, I also for my game did a lot of Fmod adaptive audio but webGL didn't wanted to make it work so we had to scrap it out of the project... It's OK 🥹
