Product photos not loading on mobile / taking ages to load

Store Design
1

I have changed the theme and just noticed that some photos dont load on mobile version/take long time to load. This is anoying and not sure whats causing it. Maybe images are too high resolution?

Not sure how to solve it. Here is example pic - as you can see photos are blurred but if you go to a specific product the photos are of high quality, as normal.

IMG_4554.jpg
IMG_4554.jpg1125×1666 132 KB

2

@rory123

Please share store URL.

Thanks!

3

there you go : stockunion.co.uk

@dmwwebartisan

4

@rory123

Please add the following code at the bottom of your assets/theme.css file.

.rt-unero ul.products li.product .un-product-thumbnail .un-loop-thumbnail:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: transparent !important;
    z-index: 5;
    transition: unset !important;
}
5

@dmwwebartisan I have added the code and im affraid its not working