I've mostly been a Mac guy since 1996. I did build a Windows PC for gaming in February, but I much prefer to use the Mac. A few months ago I added an external SSD to my nearly five-year-old Mac Mini and it really flies again. I also added an external GPU (new feature with High Sierra even though this model doesn't officially support it) and this old Mac is actually a decent gaming machine again since it doesn't use the crappy old integrated GPU any more.
Nice! Would you mind sharing some details on your setup, esp. enclosure and GPU?
Thanks,
FB