If you want to disable the fancybox gallery script on property pages you need to go into control.js and at line 2115 you have this code that needs to be removed

$(".fancybox-thumb").lazyload();
$(".fancybox-thumb").fancybox({
prevEffect : 'none',
nextEffect : 'none',
helpers : {
title : {
type: 'outside'
},
thumbs : {
width : 100,
height : 100
}
}
});

$('.imagebody_new .image_gallery').click(function () {
$("a[rel^='data-fancybox-thumb']:first").click();
});