On the world creation menu, most of the time when you cycle between the world types there's a small lagspike (may or not be noticeable depending on your machine).

This didn't happen in 1.17.1.

How to reproduce

1. Go to the world creation menu (Create New World), and go to more world options.
2. On World Types section, switch between the world types by spam-clicking the button.
3. Notice how there's a small delay almost everytime you switch, which didn't happen in previous versions.