What sort of speed should I expect with Transfer?

I’m backing up some Digitakt projects (or trying to) w/ the new Transfer 1.4. DT is on the latest firmware w/ USB connection & midi set to USB in preferences. Computer is 2018 Mac Mini w/ SSD & USB3.

My transfer speed is reading around .15mb/s, it took a very long time (maybe 20-30minutes?) to transfer a project which is about 50mb on my computer. Now I’m trying to backup all the samples on the device and I’m not sure it will ever finish.

Is this normal? Is elk-herd any faster? It’s hard for me to believe this box streams 10 channels of audio in realtime but transfers files this slowly.