Preload in Post Loop with Vantage Carousel

I’m having problems with the preloading of posts for my Vantage Carousel showing a post loop on my home page. When scrolling right through the posts, the loading of a new page of posts doesn’t start until the last post is almost dropping of to the left. I believe the code is assuming that the widget is only showing one post at the time.
I changed the code in jquery.theme-main.js to say

...
    $('.vantage-carousel').each(function() {
        var $$ = $(this);
        var wrap = $$.closest('.widget');
        var pp = $$.find('.carousel-entry').length;
        var title = wrap.find('.widget-title');
        var position = 0, page = 1, fetching = false, complete = false;
        var updatePosition = function() {
            if (position < 0)
                position = 0;
            if (position >= $$.find('.carousel-entry').length - pp) {
                if (position != 1) {
                    position = $$.find('.carousel-entry').length - pp
                };
                if (!fetching&&!complete) {
                    fetching = true;
                    page++;
...