I find BB slows up on my imac (i5 2016 27inch retina imac) if its a big project. Just wondering if an external GPU would speed up BB generally?
The images you’re importing are likely way too big. If you’re importing large images and just scaling them down inside Buildbox you’ll run into performance problems quickly. Scaling in Buildbox doesn’t actually resize the image file size.
To answer your questions about eGPUs. It’s hit and miss on Macs. Developers of the software you use have to support specific things for it to be beneficial. Read this: https://support.apple.com/en-us/HT208544