I am trying to get lazy loading working for Flexslider by using Lazy Loading jquery plugin and following the instructions on this site: http://www.appelsiini.net/projects/la
You might as well initialize lazyload with a custom trigger event ...
$jQ("img[data-original]").lazyload({
effect: "fadeIn",
skip_invisible: false,
event: "forceLazyLoad"
});
... and then call this event to preload all your images inside the flexslider with a call like:
$jQ('.flex-viewport').find('img[data-original]').trigger('forceLazyLoad');