There are some events that are set to only show for certain levels. Mostly events, that show the girls being shy about their bodies, are often set to be shown only until level 5. In the Walkthrough is a detailed rundown on which events are available for certain conditions.
I was able to create the “Teaching in the gym” events for level 1 only due to time restrictions. 0.2.1 will have the gym teaching events available for higher levels.
The cafeteria problem shouldn’t happen though, I’ll look into it.
With grounds you mean courtyard? Then that would be a problem as well.
And the bug with the two girls in the gym has already been reported and will be fixed in the upcoming patch.
Is the game lagging on AllyX from the beginning or only once you raise the levels? I recently started testing the game on Steam Deck, and had no problems lagwise.