Lazy Loading

Lazy Loading helps reduce initial page weight by letting browsers defer off-screen images.

How it works

Vacuum uses WordPress image output filters to add or preserve native lazy loading attributes where appropriate.

Recommended setting

Lazy loading is enabled by default. Keep it enabled unless your theme already applies custom image loading behavior that you need to preserve exactly.

Testing

Review hero images, sliders, product galleries, and above-the-fold layout. Critical first-viewport images may need theme-level handling outside the plugin.