Speed Tips for Large Galleries

Robo Gallery can handle large image collections, but galleries with hundreds of images may require additional optimization to maintain fast loading speeds.

Following these tips will help ensure your galleries remain fast and responsive even with many images.


Optimize Image Sizes

Large images are the most common reason for slow gallery loading.

Recommended practices:

  • keep image width between 1200–2000px
  • compress images before uploading
  • avoid images larger than 3–4MB

Using optimized images significantly improves gallery performance.


Enable Lazy Loading

Lazy loading loads images only when they appear in the visible screen area.

Instead of loading all images at once, the gallery loads them progressively while the user scrolls.

Benefits:

  • faster initial page load
  • reduced bandwidth usage
  • improved mobile performance

Lazy Load can be enabled inside the Loading Options of the gallery.


Use Pagination or Load More

For very large galleries, it is recommended to limit the number of images displayed at once.

Available options include:

  • Pagination
  • Load More button
  • Infinite Scroll

These methods allow the gallery to load images in smaller batches, improving performance.


Enable Gallery Cache

Robo Gallery includes a built-in gallery cache system that significantly improves performance.

The cache stores prepared gallery data so the gallery does not need to rebuild the layout on every page load.

Gallery cache option

You can enable cache inside the gallery settings:

Gallery → Options → Cache

When enabled:

  • the gallery loads much faster
  • server processing is reduced
  • layout generation is cached

When you change gallery settings, Robo Gallery will automatically regenerate the cache.


Organize Large Galleries

If a gallery contains hundreds of images, consider organizing content using:

  • albums
  • multiple galleries
  • categories

This improves both performance and user navigation.


Mobile Performance Tips

Mobile devices benefit the most from optimized galleries.

Recommended practices:

  • enable lazy loading
  • limit images per page
  • use optimized image sizes
  • enable gallery cache

Summary

For best performance with large galleries:

  • optimize image sizes
  • enable lazy loading
  • use pagination or load more
  • enable gallery cache
  • organize content into albums

These optimizations ensure Robo Gallery performs smoothly even with very large image collections.