We currently have 315k+ subscribers on our WordPress site. There are delays in loading admin pages and post pages with the notification plugin enabled. This includes adding users to Edit Flow groups and when trying to create/change posts and pages. I'm assuming this is due to having to populate the users list from a large user base.
How can we modify any get/list users functions to select only admins, editors, authors and contributors from the userbase and ignore any subscribers? I notice that pagination for the user lists is on a TODO list (for sites that have billions of users as noted in code).
Any help would be greatly appreciated!