Issue Summary

Customers are experiencing slowness on huge boards, despite being under limits.

Steps to Reproduce

1. Open a board and try actions like creating lists, moving cards, clicking on attachments etc.
2. There is slowness noticed with these actions.

Expected Results

Users shouldn't experience slowness while performing actions on their boards if they are under limits.

Actual Results

Users are experiencing slowness.

Workaround

Deleting content from boards has resolved the issue for some customers. However, the boards were under limits.