Venkat,
I had the same reflexion when I did the Initial Loads.
We have more than 30 SAP systems to load and it takes a lot of time, depending on the speed of the systems (sandboxes are very slow here), the number of users, roles and assignments.
Before starting the initial load I usually make a cleaning in my SAP systems :
- Cleaning of the users regarding the policy (users not used for 18 months)
- Cleaning of assignments (granted roles with a date in the past are deleted)
- Cleaning of dubble assignements (useless and worst, makes errors in IDM during the loading, and errors slow down the load).
I also tried to make the loads during the night from home, but the performance were less good than during the day at the office (altough my internet connection is very good).