Comment 5 for bug 1339016

We were able to improve the situation by limiting how far in the past to sync for calendar events. This was a combination of a new version of syncevolution, and a patch to it and sync-monitor to introduce a "syncInterval" configuration setting (defaults to 90 days) specifiying how many days in the past to go back when syncing. For my caledar, it used to take 20 minutes for initial sync. Now it takes 33 seconds! Will need testing by others but this seems to help greatly.