Outside of launching and syncing, there are some operations that are very common for users. To represent these, we tested the following:

  • Opening folders
  • Moving messages from one folder to another
  • Moving messages to a nested folder set
  • Marking, in bulk, messages as “read”
  • Changing the status of flags or categorizing, in bulk
  • Deleting messages
  • Emptying deleted items

It’s not surprising, given the new “engine” under the hood in Outlook 2016, but across the board, Outlook 2016 was much faster in almost every item above. Even in the case of the already fast “open folder,” it was still faster there as well.


Figure 4:Operations Performance
(shorter is faster)