I see, I don't think that is where the issue resided... I believe the bottleneck was the USB drive I/O in general, but it be nice to be able to see this info, but the only real way to see this stuff is via Resource Monitor.
I was doing a restore to another old USB passthough HDD, I'll spin up a VM on the same host and enable hardware passthrough for the these two different USB enclosures and drives I have and run FIO testes against them and report back my findings. Thanks for the help and suggestions so far.
FYI I noticed the job stated completed but resource manager still showed I/O to the USB disk for almost a minute afterwards. Always a good idea to ensure all I/O is done before removing a USB HDD. (Usually why they tell you to use the safely remove drive option)