The Enhance Feature in Photo AI takes FOREVER! This is way below par for a Topaz product.
What are the technical specifications of your PC?
Please send your logs to support and the will provide you further troubleshooting steps
To do that, open Topaz Photo AI and go to the Help > Open Log Folder menu option and Email me all the logs files in the folder.
Also send us your computer’s full system profile
Once I have those, we can proceed with further troubleshooting steps