Issue Summary

Jira Boards and Backlog pages might load slowly for a few users on large sites. We have observed the slowness in loading on the Backlog pages due to permission checking, particularly affecting users with extensive project permissions.

The slowness is observed even with Boards is JQL with the Project conditions.

Example/context: user X has permission to almost all the groups, and roles, everywhere in Jira, and this is slowing down the permission search functionality, On the other hand, a user Y that has less permission, the permission search functionality will be less stressed and take less time

Note: The development team is already working on it

Steps to Reproduce

1. It can be reproduced only by selected users with extensive permissions in many projects
2. A Jira administrator can replicate it by impersonating the user affected 

Expected Results

Board with JQL should load faster (less than 5 seconds)

Actual Results

Backlog & Board pages will load slower for few users. The backlog page takes a long time to load ~10 seconds

Workaround

Currently, there is no known workaround for this problem. A workaround will be added here when available