Ive talked about this earlier and i am still a strong ambasador for a new type of preview window for prime and other preview modes that only at 75% view are visible on the preview in the editor.
1 make a button for processing prime on the preview at the hole image instead the small box aside.
2 make that smal box somewhat bigger and use a control key or button to raise the box as a 1/4 of full view in where the process is done and dealt with the problem.
Noise, CA , moire, things like that so i can move this box over the full view imagge let the process be done and watch the hole image if it’s improving inside the box.
If i don’t need it i deactivate that box and no proccessing time is delaying the editing workspace.
A on demand timedelay with benefits : Good preview of future processed jpeg.