I hate to resort to "apples and oranges" but that's what you have in this case.
Velvia 50 is a vivid (and a bit green biased) transparency film, while Ektar has a bit of bias (at least to me) on the warm side.
I don't have any transparencies or print film printed commercially. Everything I do is scanned through a Epson V850. The Ektar film requires very little in image correction when I use Affinity or Adobe Elements 2018. As I mentioned earlier, Velvia requires some correction.
A question first, though, on your processing. When you say the Velvia has "better color and more Life", are the Velvia transparencies being scanned by the processor? I've printed Velvia from JPEG provided by the processor, and they were very vivid as I remember seeing Velvia slides on the screen. I rescanned the images on the V850, corrected for the green bias, and the results are more pleasing, a bit more "neutral" in color translation.
Films, when scanned, usually use algorithms based on the type of film (transparency v. negative; Kodak v. Fuji, etc.). It could be that the processor/printer is somewhat biased in the way they interpret the image.
If you could provide a bit more data about how the Velvia was printed, it would be helpful. Also, was the Ektar processed "normally", and printed on standard photographic paper?