Lightroom is very demanding both in processing and in GPU. Also you need proper screen color calibration to get accurate results.
Personally whenever I use the clone/heal brush Lightroom slows down to almost unusable performance and this is on an i7 + 8GB RAM - I can't imagine running it in a VM. I am sure this is Adobe's fault though cause the same tools in Photoshop perform multiple times faster.
Its not about the processing but the graphics. I have tried Lightroom and Photoshop in a VM a while ago and the rendering was a little off and very slow.
Re:Poll on macOS 10.12 is broken
by brazzledazzle on Tuesday October 11, 2016 @05:31PM
(#12688685)
The combination of GPU and what software you're using for VMs might matter too. Intel graphics are probably out. GPU virtualization is far from perfect but I've seen some surprising results.
I'm not saying Lightroom will run in a VM, I haven't used VMs for heavy programs, this was just an anecdote of me being surprised by how someone could use huge engineering programs inside a VM.