www.wysiwygwebbuilder.com

Thanks for adding lazy load option to many properties.
However, you are still using tehnique with .gif placeholder + js.

Lazyload is now native to almost all searchers, so just adding a simple line loading="lazy" to all images will do it.
And no need for more calls and js. It makes the difference in page load time.

However, you are still using tehnique with .gif placeholder + js.

The old behavior has not changed (intentionally).
Safari does not officially support this yet, and I did not want to break lazy load for existing websites.
https://caniuse.com/loading-lazy-attr

So, only the newly added functionality (for example for cards) is using the new HTML attribute.

Yes, I understand.
Still, the percentage of Safari users is low. And all these gifs and one more js can make the difference in rankings (it's more and more competitive out there).
Please keep in mind this, as it's will be needed in future, when Safari accepts it.
It can be applied on sever level, but it's time consuming, page by page.

Still, the percentage of Safari users is low.

All iPhone and iPad user have Safari.

In future versions of WWB, the built-in script will be replaced. But for now, I think it's too earlier because it will break existing functionality.