Ah, it's probably the web version you're trying then? I've been looking into that recently. Apparently a lot of Godot 4 web games have this issue and it's due to browser + web standard shenanigans(to put ineloquently). I can't do much about it at the moment, and porting the game over to Godot 3 would be quite difficult. If you want to give this game another chance, try the standalone builds!
If it's not the web version you're having issues with but the downloaded one, if you could share some info about where the issues come up (whether it's the start of the game, or hitting enemies, or etc.), that would be helpful!
