Hello! My iMac 27” from 2014 is sadly dead and I am looking at a 2017 version that has USB-C ports. is it possible to use an external USB SSD (ie Samsung T5) via USBC as the main boot drive and, more importantly, how will the performance be vs an internal SSD SATA? I’m pretty sure I t will be better than the included fusion drive. Thanks for any feedback you can provide.