Hello
I find Viveza VERY VERY VERY slow.
I was used to play with the old version of Viveza (just before Dxo bought the NC) and it was fast. My computer is a Core i7 8th gen, with 32 Gb of RAM, and 1 Tb SSD drive… and when I use Viveza, it takes randomly between 10s to 1m30s to act on the same photo (20 MPix from Canon 6D/Photoshop 2022) with almost the same settings.
Fred