In a newly installed EPiServer CMS 5 R2  (64 bits) the loading of My Tasks -tab in Edit-mode is very slow. About 30 secs. What is this view doing exactly? The lists presented only contains about 40 items.
Everything else is working fine. Could the slow performance be a result of too many windowsgroups imported by the windowsauthentication provider? About 1700 groups are listed at the moment and we are of course thinking about changing provider.