I see this is old, but in case someone else needs the answer – put this in functions.php:
// Disable lazy load for featured image only
function disable_lazy_load_featured_images($attr, $attachment = null) {
$attr['loading'] = 'eager';
return $attr;
}
add_filter('wp_get_attachment_image_attributes', 'disable_lazy_load_featured_images');
After playing around with this again I got it to work with the [cusrev_all_reviews] shortcode, but this of course shows reviews of all products rather than the specific product the customer is looking at. It’s not terrible and I could leave it, but it would be cool to find out a way to get it to work displaying the one product only.
Considering the CR plugin explicitly states that [cusrev_reviews] will only work on the single product page and Oxygen uses templates for WooCommerce stuff, I am going to just consider this not do-able for now and mark it resolved.
