We highly recommend to use an image compression profesional tool. Speed Cache is integrated with ImageRecycle service, you'll get image compression quota included in your membership. The optimization algorithm is capable of reducing the file size of standard JPEG & PNG images by up to 85% (5x +), while the resulting photos are visually identical to the original photos. Here's our plan:
- Speed Cache 1 year membership: get a 3 GB quota available for all your websites
On top of that you'll get the best in class Joomla pressive image lazy loading. Not images will be compressed but they'll get loaded progressively on scroll with a placeholder.