Native lazy loading on WordPress 5.5 and SPAI compatibility
In WordPress 5.5, images are lazy-loaded by default, using the native HTML
loading attribute which became a web standard earlier in 2020. This means that WordPress will add
loading="lazy" to all
img tags that have
height attributes present.
Now, if ShortPixel Adaptive Images (SPAI) is activated, it will lazy load all images, whether they have the mentioned attributes or not. If you wonder what happens between SPAI and WordPress 5.5, here are the two scenarios:
- If the option "Native lazy-loading" is enabled, ShortPixel will add
loading="lazy"to all images, so the lazy-load effect will be similar to WordPress' default one. The only difference is that your images will be optimized and resized in addition to native lazy-loaded (because that's SPAI's purpose).
Note that there will not be any duplicated attributes or any conflicts with WordPress' default behaviour.
In this case, there is no compatibility issue either.
In short, it does not matter what method you use to lazy load your images: ShortPixel Adaptive Images will not cause any performance or compatibility issues with WordPress 5.5.