Reply To: Referenced thumbnail file size is much larger than the actual thumbnails

[Ernest Marcinko]

Well, you can try to force the background size to be initial (original resolution), instead of trying to cover the space:

div.asp_r.asp_r.horizontal .results .item .asp_image {
    background-size: unset !important;
}

This custom CSS will prevent the image processing by the browser, and print the image as it is, in the original native resolution (440×330 in your case). That should remove the browser render blur as well.