Siteditor preloads all the pages of your site, so as people navigate there's zero wait time getting around.
Only images load on the fly, making getting the info they came for instantaneous. In fact, Siteditor can preload hundreds of pages of text, and with additional folders. thousands of them! That's a lot.
Even so, any page, or even enlarged image from the site galleries, can be sent as an html link. You can also link your site pages internaly, easily navigating all that information.