I had also more possibilities previously, up to 12 in v8 (but never use them). Probably this is due to more intensive GPU usage for new AI possibilities.
I’ve definitely seen reviews saying that more is not always better with PL’s exports. You have to do your own testing to see where the sweet spot is. I don’t even do large exports very often. Just was surprised that it jumped down to so few, and was wondering if it was a bug or not!
@unchdxoly In the past I have only run high numbers of copies to investigate the “mess” that Win PhotoLab could get itself into and typically run with 3 copies on my 5900X (RTX 3060) and 2 copies on my 5600G(RTX2060) for normal exports.
The PL9 trial copy is installed on the 5600G and the tables above show very little difference for my images with ISOs ranging from as low as 1600 to as high as 25600 from my Micro Four Thirds G9 for 6, 3 and 2 export copies, i.e. 1 second difference between each test!?
How PhotoLab is calculating the “ceiling” I do not know but I agree that less copies works just fine for my machines.