Photoshop CC 2018: Print dialog extremely slow to open/does not respond

Yes, I'm using the latest PS CC 2018 and the most up-to-date Win10.
Adobe Photoshop Version: 19.1.2 20180302.r.277 2018/03/02: 1160083  x64
Operating System: Windows 10 64-bit
Version: 10 or greater 10.0.16299.15
System architecture: Intel CPU Family:6, Model:12, Stepping:2 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2, HyperThreading
Physical processor count: 6
Logical processor count: 12
Processor speed: 3331 MHz
Built-in memory: 24574 MB
Free memory: 10855 MB
Memory available to Photoshop: 21907 MB
Memory used by Photoshop: 70 %

I'm not using the print option in PS very often, but only every 10 days or so. So I don't know exactly with which update this issue was introduced... But about 4 weeks ago, everything worked just fine and since the latest 19.x updates it got screwed somewhere.

What happens?
Open a file, you can edit, create layers, zoom, modify, brush, whatever you want, everything works smoothly. Small files, large files, all kinds of formats (JPEG, TIFF, etc.) no problems.
BUT, as soon as you click on File/Print, the havoc starts!
The mouse cursor becomes slooooooow.... system becomes slow, even a browser window starts to slow down. The Windows Resource Monitor shows about 15-25% CPU utilization, but the Photoshop.exe PID gets a red entry; "Not Responding"  After about 15-25 seconds, the Print Dialog window finally appears. But every action in this window, results in another slow/stall behavior of my system. In fact the Print Dialog becomes unusable! Only when I click on 'Cancel', everything is back to normal again.


Done so far to check/verify:
-all other applications work fast and without any issues when printing! Even other Adobe s/w like AI, Acrobat, ID, etc. Also MS Office applications and other graphic software keep on working just fine with their printing dialogs/windows/features.
So it's a specific PS CC 2018 + Print only issue!
-Checked the Event Log files; but there is nothing logged about any PS issues. (?)

-I've even uninstalled PS CC 2018 from my system and cleaned up all remains, including appdata leftovers and all temporary garbage from PS. Reinstalled the latest PS CC 2018 from the CreativeCloud app; left PS CC 2018 with all its standard settings and just tried to print again.
No luck, problem with print dialog from PS CC 2018 is back immediately.
Then I set all my personal settings and performance enhancements within PS CC 2018; no change. GPU acceleration on/off; no difference. Scratch disks on/off/change; no difference.
Even reinstalled all my printer drivers; no difference. But as I mentioned before, ALL OTHER applications do print just fine! Only PS CC 2018 print function is unusable.

When searching for this issue on the www, I found this exact issue:
https://forums.adobe.com/thread/2411564
but no solution...

Anyone?