Incident View taking excessive time

We just completed the upgrade to DLP version 15.0.01.  SInce the upgrade completed, it takes anywhere from 4 to 8 minutes to call up the incident detail.  I can see a report very quickly and filter and sort the incidents without any delays but will see the long delay if I try to look at a single incident.  It is very consistent in doing (which obviously makes the system unusable for that purpose).  Any ideas on why a process that would usually respond within seconds is now taking multiple minutes?