We have several thousands of users in our user memebership database. When we try to edit a user through the FBAPack (SharePoint Foundation 2013) it takes one minute to show the first screen with 30 users. When we search for a user it takes two minutes
to find the user. Processor usage on the Sharepoint goes up to 30-60% during the user search query. A query on the SQL server takes less then 1 microsecond to search for a specific user. Do you have any idea why it takes so long in the FBA pack?