Morph cut analyzing in background extremely slowly in 2018 update compared to 2017 update

Installed 2018 update on three of iMacs, all with higher end specs. The one I am working on now is an iMac Pro. All three machines experience the same issue - where before (cc2017) analyzing a 4-frame morph cut might take ~30 sec, now (cc2018) I'm stuck on 'analyzing in background' for upwards of 3 minutes. I've tried all the standard troubleshooting options and I know there are some workarounds but this is an issue Adobe needs to address directly and fix in an update. This is a feature that was working perfectly in the previous version that is now only semi-functional. 

I've been in touch with customer service directly about it and they have nothing new to offer.  Adobe - has there been any progress on solving this issue?

Attached is a screenshot of the specs on the iMac Pro.