I'm curious if there are options for setting how often mail and/or calendar synchronization collections process the mailboxes in them. In some cases, I'm seeing a last processed time of 3+ hours. Is there some sort of schedule that can be set for synchronization collections, or is it maybe a factor of resource availability for the MAgE hosts?
MAgE unified sync agents
Yes, there are absolutely many settings that can assist, but beware, adjusting these can cause greater impact on your SQL server.
I hope this helps,