Great game! However, it lags quite a lot for me. Some optimization would be helpful. Since you're using Godot, you might want to try using VisibleOnScreenEnabler3D node, it helped me a lot with my game!!
Thanks for playing and the recommendation. I'll definitely check that node out for next time! Things got a bit better with the ubershaders in 4.4, but there's still a ways to go for web optimisation for sure. I look forward to experiencing that node in practice when I give your game a go :)