Problem:
When a Confluence page becomes very large and enters "performance mode," some editing features are disabled without any visible notification. This lack of transparency can cause users to misinterpret the behavior as a bug, leading to confusion and unnecessary troubleshooting.

Suggested Solution:
Display a clear, visible indicator or message when "performance mode" is activated (e.g., "Your page is getting large, so some editing features have been disabled to maintain performance."). This would help users understand the reason for the change in functionality and reduce confusion.