Yeah I fought with the issue for months & unfortunately came to the conclusion that I couldn't fix it. It happened right after I upgraded from Godot 4.2 to 4.3 and so on.
Oh, are the old versions massively different? I understand that this being a small itch game might not make it that important to you, but perhaps by making a "Lite" version, t=you could fix these issues. Maybe even have the light version of the game as the web version, idk. I'm Pikkewaan btw (Pic-eh-vahn)
Technically and gameplay wise, things changed quite a bit over time. A lot of systems were reworked as the engine evolved, especially around rendering, physics, and input handling.
The older versions aren’t just lighter builds of the same game. They behave differently under the hood, and backporting or maintaining a separate Lite branch would essentially mean supporting two games at once.
For now I’m focusing on keeping the main version stable and consistent across platforms. The downloadable build is the intended experience performance wise, while the web version is more of a convenience option.