What's happening to me is "simple": when I open Zomboid, the main screen and character creation have normal FPS at first, but after a while, the FPS gradually drops until it becomes completely laggy and eventually crashes (normal launch). If I use the alternative launch, it either stops responding or freezes completely.
I've already uninstalled and reinstalled Zomboid, gone to Users/MyUser/Zomboid, removed everything, and it didn't help. I've also restarted my PC, and nothing worked.
If I try to quickly skip ahead and start the game directly, it just keeps loading indefinitely. I'd like to know what I can do to fix this, or if I should just wait for an update to solve it.