This guide assumes you've installed the LiteSpeed Cache plugin for WordPress.
One of the essential features in the LiteSpeed Cache WordPress plugin is the image optimization capabilities.
However, there are a few settings that make the optimization a bit more optimal, and we will explain them here.
First, go to the LiteSpeed Cache Settings, and click the "Show Advanced Options"-button:
This will bring up a few more tabs in the top, such as settings for additional Tuning, Media, CDN, ESI, and other Advanced settings. In this case, go to " Media" (You can press 7 on your keyboard).
If you scroll down, you'll see an item called "Optimize Automatically", we have to perform a few changes here:
We recommend setting the setting as in the above screenshot.
Here's the reasoning behind:
Optimize Automatically → On: This will automatically send images for optimization whenever wp-cron gets triggered.
Optimization Cron → On: This will fetch the optimized images from the LiteSpeed's image servers.
Optimize Original Images → On: This will optimize the "original" image, that you uploaded (the full size one).
Remove Original Backups → On: Enabling this will remove backups of the non-optimized images, setting this to "Off" will result in more disk space being used.
Optimize WebP Versions → On: Whenever images are sent to optimization, the image optimization servers will also generate a WebP format which can be up to 90% smaller compared to the other formats.
Optimize Losslessly → On: When doing lossless optimization, it means removing data that doesn't cause visual changes to the image itself, so there will be no quality loss - if you can live with some loss in quality, you can set this to "Off".
Preserve EXIF data → Off: If you want to keep the copyright information, GPS location, comments etc you should set this to "On".
Image WebP Replacement → On: This will actually load WebP images on your website (for supported browsers).