Image Prioritizer is a WordPress plugin designed to enhance the loading performance of images and videos on websites. It focuses on improving the Largest Contentful Paint (LCP) metric by implementing features such as prioritized loading, lazy loading, and accurate image size selection. The plugin automatically adds fetch priority attributes to relevant images, ensuring that the most critical elements load faster for an improved user experience.

The plugin also incorporates lazy loading techniques for images and videos based on their visibility in the initial viewport. It computes responsive image sizes and optimizes video poster images to reduce load times. Notably, the plugin requires a dependency on the Optimization Detective plugin and does not have a user interface, operating automatically without configuration. Users should note that optimizations will take time to reflect as they depend on actual visitor metrics.