I mean that the alternate version you posted works about the same as when I used the --rendering-driver opengl3 command on the first version.
I don't know why this is happening. Your other game worked fine for me.
Does the web version work for you?
Ero Witches is built in Godot 3, this game in Godot4. The people behind it are still making compatibility changes to the renderer, so it may get solved in the future.
Visually, yes. It just lags horribly.