An average login time for us at the moment is about 25 seconds - I think we can live with that.  But sometimes we're getting unacceptably long login times - most looking like this:

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] ****************** Session Summary (User: Session: 1) *****************

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Logon Time: 88.58 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Logon Start To Hive Loaded Time: 3.51 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Logon Start To Classes Hive Loaded Time: 3.64 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Profile Sync Time: 0.00 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Windows Folder Redirection Apply Time: 0.00 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Shell Load Time: 3.09 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Total Logon Script Time: 0.00 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] User Policy Apply Time: 80 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Machine Policy Apply Time: 0 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Group Policy Software Install Time: 3.86 seconds

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] Free Disk Space Available To User: 25 GB

2017-11-03T10:05:02.383 INFO (0a38-060c) [LogonMonitor::LogSummary] ***************************************************************************************

As you see - the majority of the time is 'User Policy Apply Time' - presumably this indicates an issue with applying user gpos?  Ie, nothing to do with UEM or horizon - something that is external to VDI?

I suspect it's hitting a slow domain controller or something - but just wanted to confirm that this category of time does not relate to any UEM configs getting applied at logon - is that right?