Improve the page load time of the Domains page when there are a large number of domains claimed

Problem

The Domains page takes too long to completely load when there are hundreds of domains claimed.

Current Behaviour

When you first access the Domains page,

1. It first loads the list domains which takes about ~250ms to load

   https://admin.atlassian.com/gateway/api/adminhub/organization/<orgID>/domainClaims
   

2. Then there are 3 calls per domain triggered to lazy load the memberTotal, count and fetch data

   GET https://admin.atlassian.com/gateway/api/adminhub/organization/<orgID>/domainClaims/<domain.name>/memberTotal
   GET https://admin.atlassian.com/gateway/api/admin/private/api/admin/v1/orgs/<orgID>/domains/<domain.name>/managed-accounts/count
   POST https://admin.atlassian.com/gateway/api/admin/private/api/admin/v1/orgs/<orgID>/managed-accounts/config/fetch
   

By the time the calls are all completed, and the page is fully populated, it'll have taken about 40s (for an org with 445 domains claimed) mark.
This becomes a problem for Enterprise organizations that need to claim thousands of domains

Suggested Solution

Improve the way the Domains page loads the valuable data (All/Managed/New accounts). Ideally, some sort of pagination for the response.

Why This Is Important

While the initial page load shows the list of domains, the valuable data is in the All/Managed/New accounts section which only comes after lazy loading. So when there are thousands of domains claimed it'll take too long.

Workaround

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