Slow Performance while editing Legacy Editor Page

Issue Summary

This bug tracks any reports of page performance issues on the LEGACY EDITOR. These issues may be caused by a large number of tables with data.

Steps to Reproduce

1. Create a la page with 10+ tables each with around 10-20 rows
2. Notice that the performance of the table was slow while inserting some text to the table.
3. Page load times vastly increase

Expected Results

Performance of the table should be stabilized while inserting text on the tables.

Actual Results

Degraded performance while editing page and intermittent inability to save.

Workaround

Try removing elements on the page or splitting up the page and see if that improves the editing speed. If you are able to remove elements and see performance improvements, please share as a comment to help us narrow our focus on key elements that are slowing page performance.