In our Sharepoint 2010 solution we have a list extension that allows users to create their own subsite. This worked without any problems in our previous version of Sharepoint (2007).
Since the switchover to SP 2010 we notice that it takes a few minutes for setting the appropriate user permissions on the subsite. This would be a security risk.
What could be causing this problem ?
Code for list item added: http://pastebin.com/idxg5a0p
Thanks in advance!