Problem Definition

Loading "Boards in this project" while rendering the sidebar Jira executes the findRapidViewsByProject, which degrades under load with a large number of boards (see JSWSERVER-16130).
Sidebar screenshot:

this leads to a slow issue loading. In some situations, this data is not necessary and Jira users would prefer speed over functionality.

Suggested Solution

Add option to disable the "Boards in this project" functionality to improve issue loading performance.

New feature

For Jira mentioned in Fix Version:

• To disable "Boards in this project" set dark feature flag: com.atlassian.jira.agile.darkfeature.sidebar.boards.list.disabled (see enable-dark-feature)

Feedback from clients, after disabling "Boards in this project" :

• 30% improvement in the performance of boards and overall system.
• 2x decrease in response time for Issue load

Workaround

In the admin panel, navigate to Add-Ons->Manage apps, change the filter to "Application components" or "All apps" and search for "Jira Agile". Open the list of module and disable:

• project-sidebar-header-boards-list-provider
• board-scope-filter

Warning: this is not free of side effects, for example the users will not be able to select the board they want to use via UI