You may have noticed that 7.1’s MMC is slow when loading containers with large number of objects (approx. 500 objects), those are displayed in smaller amounts than native ADUC.
For example, while ADUC loads/displays the objects by the 100s, the AR MMC console is loading/displaying them by the 25s.
This is a product defect (TF00705461). ARS administrative service module is not properly caching the frequently used Azure attributes while evaluating the Azure Policies for various object types.
This will be fixed in this Public Hotfix: Active Roles 7.1 public hotfix (multiple fixes) (230501).