- Click “Photo Gallery” from the menu on the left of your WordPress dashboard.
- From the list under Photo Gallery, click “Options.”
- Under the “General” tab, find the “Lazy load” option and click “Yes.”
- Click “Save” to apply your settings.
This will enable lazy loading that will also improve the loading speed of your galleries.
Additionally, make sure that the “Developer mode” option located in the same page, is switched to “No.”