Async JS and CSS
Converts render-blocking CSS and JS files into NON-render-blocking, improving performance of web page.
Tag do plugin: asynchronous
Speed Up – Optimize CSS Delivery
This plugin load the stylesheets asynchronously and improve page load times.
Asynchronous Javascript
Improve page load performance by asynchronously loading javascript using head.js
Asynchronous Widgets
Asynchronous Widgets allows you to have any registered widget on your WordPress.org-powered site be loaded…
Async Vid List
Lets the user create lists of video embeds that load and play asynchronously in one…
Head.WP
Head.js is a script to asynchronously load and manage dependencies of javascript and CSS assets.
WP Angular
This plugin allows you to build your templates in a AngularJS way.
LH Email Queue and Log
LH Email enables you to queu your emails so they are sent asynchronously.