we are using product variation images directly uploaded to product variation as image, as the color for this option changes between brands so its a must option.
However, we notice, that to load/download these images takes 30seconds for 50kb of variation image data to download (please see http://prntscr.com/n0y9n3).
Resources downloading are not controlled by our theme. It depends on your connection speed and on your server where the images are stored. And when we test your website, it loads all the resources in 3-4 seconds.