Hi!
I am using the newest CC4 and headshot versions and have a 4K JPG image and have let the PRO Variant built a character. When I now activate the Image Matching feature it takes about 2,5sec to appear. And when I then try to change the opacity of the reference image I can not just drag and slide around with the slider because it´s extremly lagging. it takes about 1 sec to change the viewport after I changed the opacity. Watching the tutorials they are really sliding it in realtime and turning the tool on and of is working just instantly. I did not do any Color or contrast changes. Changing the lens works like a charm...

My machine is rather fit:
AMD Ryzen 9 5950X 16-Core Processor               3.40 GHz
RAM 64,0 GB
NVIDIA GTX 1070 8GB VRAM
5K Monitor
Disk: force mp600 nvme pcie m.2 2tb

Task Manager says everything is on minimal usage.

So what is holding the process back from acting smoothly?

Thanks!

Sascha