The dialog to add groups to permissions schemes does not open

The dialog to add groups to permissions schemes does not open.

Steps to reproduce:

• Create approximately 100000 new groups
• Go to the permissions schemes page and create a new permission
• On that permission, click on permissions to edit the permission scheme
• On Groups section click on assign 

Actual result:

The dialog takes a lot of time to be available, or the page stops responding.

Expected result:

The dialog should open, and it should be possible to see all groups or search for them.

As a workaround with Postman or another equivalent app

type: POST

URL: <base_url>/rest/jiraxporter/1.0/schemes/<permission_scheme_id>/config/groups

body:

{"groups": ["<group_name_1>", "<group_name_2>", "<group_name_3>", ...]}