Cache item schema

[Sakuya-Izayoi]

When debugging the item schema is not preserved between consecutive script starts, so that may lead to huge delay before the item schema is loaded. If this is not the reason for item schema not loading, please, tell me how to workaround this.

[DoctorMcKay]

That's the reason for what you're seeing. You should cache it locally and restore it upon subsequent startups.