Adding description for already created story feels slow

When the user tries to add a description for an already created story. The description input takes much longer.

Feels like the whole page “slows down” in that moment, and the description is filled with some delayed after keyboard input. (see attached video)

StoryID: 419423
ProjectID: 91ebf0

But it’s happening on all of our projects.

When creating new story the description input works fine.