I've always shot pretty big loads, and my wife was surprised at just how messy this whole sex thing was sometimes. I've always gotten the impression that women like the concept of turning us on enough for us to cum, and that a good orgasm was what they liked us having but the amount wasn't as big a deal. However, if they have to clean up afterwards, or, as my wife sometimes complains, clean the sheets because there's a huge wet spot on here side, then maybe less is more.
Frankly, I didn't know I was such a big cummer myself for years until I j/o with some buds in college and realized I usually shot longer (more shots), farther (yep, above the head, on the wall), and bigger (more jizz) than any of them--regardless of how long since I'd last cum.