You could add the source to hidden images after page load.
Hidden images:
<img data-src="/images/image1.jpg">
After the page load run something like:
$(function () {
$('img[data-src]').each(function () {
var hImg = $(this),
src = hImg.attr('data-src');
hImg.attr('src', src);
});
});
The slide show plugin should be included only after this document.ready function of course.