Question: Time machine very slow over wireless
My time machine backups are very slow over wireless. Using iPerf3 I tested my wireless link which is pretty good (and normal file transfers speed are "in range") but Time Machine seems to encounter some difficulties on its tasks.
The backup speed can't go over 1Mbit/s, while transfering files can fly over 60Mbit/s pretty easily.
The backup is encrypted, I don't know if this can request some extra-work which slows down the process over wifi but when using a wired connection (NIC over usb-c) the speed is pretty good once again.
Do you have any suggestion?
MacBook Pro (15-inch, Late 2016), macOS High Sierra (10.13.4)