This is a puzzling one. I have built a site for a client with a number of large galleries. They are reporting very slow loading of images in all galleries - they wait for the first image to display and start clicking each image in order - after 3-4 images each image takes a very long time to load. They get this consistently in 3 distinct environments/locations. I've seen speedtest results for one of them and it's a very fast connection.

I, on the other hand, do not experience this at all - ever. I've tested it on a wired computer and wireless ipad and itouch. Tested on Chrome (on computer) and safari on devices. I believe they are using firefox and safari.

I have the preloading option set to "page" which I assume preloads the first set of thumbnail images (10) before the first image displays. So selecting images 3-4 and on in that first set should load instantaneously, no? Shouldn't that be the option that would be best to avoid this very behavior they are seeing?

The images are fairly large (~1mb each) because I want high quality display for full screen mode.

Here is a link to the site: http://caitlinmccaffreystudio.com/caitlin/indexnew.htm

I can't understand why my experience (on different wired/wireless devices) is so different than theirs in different environments on high speed networks.

Is there anything I might do, other than make the images smaller, that could improve their performance - or issues to look for on their end that might explain the difference in performance?

Thanks
Bob