Hi,
Yes, you are right and that is why we would do everything we can to help you resolve this issue.
If you go to our
Theme demo you will see that in IE 11 the Filters slider is working, also the QuickView and the AjaxCart are working fine too.
The bug that you have described when you stop the script is because you have the bundling turned on, which means that you are stopping the execution of all the JavaScripts on the page and because both the AjaxCart and the QuickView JavaScripts are part of this bundled script they could not work.
The link you provided is taking the same time to load on IE 11 and on Chrome or Firefox. We, also profiled the JavaScript and
this is the result. Keep in mind that your bundling is on, so this is the profile information for all the scripts that are executed on the home page, which includes the ones from nopCommerce as well, not only ours.
As you could see the execution time of all the scripts is 1,41s which is pretty fast considering the number of products that you have on your home page.
What I am trying to say is that nopCommerce is not the fastest platform, so these loading times are to be expected. Our theme has nothing to do with this.
Our advice would be to consider reducing the number of products on your pages. For example instead of 30 you could show 15. This will speed up the loading time.
The only problem that we are seeing is that the Slider is loading slower than the products and menu, which is known bug and it is planned for resolving.