Yes, I understand this, but what can be the reason for such a difference in the speed? I use v18.104.22.1682 for this test.
On a side note, I've noticed in the similar test on v8 it is mounting backup to the local server no matter if I choose SQL item-level recovery or Export. This is a screenshot of my recovery from v8 (Restore -> Application Items -> Microsoft SQL server -> choose a full backup and get to the SQL Explorer. Choose DB, Database restore -> Restore to another server -> restore to the selected image-level backup point -> enter SQL server domain name and necessary login/pass -> choose folder on destination server.) And the speed is high in this case too
Maybe as a workaround there is a way to force it to mount the backup locally in v9?