That's an extreme example of course with 1715 images. I am guessing it was slow for you for a period of time, because the server has to resize 1715 images while you are scrolling. This will make the server very very slow for a while, until images are resized and cached.
The document and images load quite fast here, 734 ms, although the document is 1.2 MB and contains 1715 photos. Also, images load quite fast when I scroll, supposedly now because they have been resized already.
DaleCooper wrote:I'm testing X3 Gallery because my actual portfolio engine is outdated (Juicebox-Pro by SimpleViewer). You can view it here:
www.leleweb.it
Where can I see the page with 1715 images? I just get to a simple home page with only one image. When I click "view gallery", it takes me into fullscreen (which I don't want), and when I exit, it takes me back to the single image home page.
Even if I remain in fullscreen, it's only showing 16 images at a time, surely not comparable to a page where you want to show 1715 images instantaneously on scroll. Even on this website, those small thumbnails would have to get created at some point also, either from SimpleViewer control panel, or as they got displayed. And this would have been as slow as your server resources allow.
Try again. It's perhaps not very useful for visitors to view that many images on a single page? It's possible of course, but then you must permit some longer delays while your server is resizing 1715 images when you scroll fast through them first time. This could take a while on shared hosting, before all images are processed and your server speeds up again.