This plugin automatically applies performance-focused attributes to all enqueued CSS and JavaScript files on a site. It is designed for developers and site administrators who want to improve page load times without manually editing each script and stylesheet. The tool handles the technical process of marking CSS for asynchronous loading and JavaScript for deferred execution, which helps content appear to users more quickly.

• Automatic Attribute Application: The plugin adds async, defer, and onload attributes to all registered scripts and stylesheets, eliminating the need for manual code changes.
• Browser Compatibility Fallback: It includes a library to ensure the async CSS technique works correctly in older browsers that do not natively support the required attributes.
• Performance Focus: By loading CSS asynchronously and deferring JavaScript, the plugin helps reduce render-blocking resources, which is a key factor for Core Web Vitals metrics like Largest Contentful Paint (LCP).
• Potential for Conflicts: The plugin's documentation notes that some other plugins which rely on inlined JavaScript techniques may experience issues, indicating a focus on standard enqueuing methods.
• Recommended Usage: For optimal visual stability, it is suggested to pair this plugin with a tool that manages the potential flash of unstyled content during asynchronous loading.