Project: jirasoftware
Issue JSW-6313: As a user, I want improved performance of epic issue statistics updates because I want up-to-date data 
Currently on GDOG, dragging 4 issues into an epic takes ~10 seconds for the issue count in the epic to update. (?) This will need to update *all* statistics shown for a given epic -- see comments. (!) Testing Notes (!) Q: We should write a soke test for this and try out the difference before and after the changes with varying sizes of data. A: (x) Not Answered Q: What calculations will be made on the client side? A: (x) Not Answered Q: Will these calculations impact other client side operations, or otherwise affect responsiveness? A: (x) Not Answered Q: Will need to be checked in all browsers. A: (x) Not Answered
Story points: 5