This is strange because I’m also experiencing this. When switching models or scale it says “loading…” for more than 5 seconds, especially with GPU, and sometimes the program hangs and shows “does not respond” for a very brief moment before finally starting to process.
It was much more responsive with the previous versions, even though there always was a “loading…” delay, but not that long and without the unresponsive window.
For information I’m on i7 9700K and GTX 1070Ti.
Denoise and Sharpen also have a significantly longer waiting time when switching models with GPU than it is with CPU.
Also I feel like I have some models in double. Is that normal that the Gigapixel models folder is 16 Go by doing the updates from February 2022 to now ?