Mark Jaquith

<p>When your posts get a lot of comments, performance can be a concern. The generation of the comment HTML and the delivery of all that HTML can slow down your page loads. <strong>This plugin has pages load without comments, and then uses a secondary AJAX request to pull down the comments.</strong> Navigating through the pages of comments is also handled via AJAX. On my test install with 100 comments per page, the <code>onload</code> event fires 2x faster. The HTML is generated by the server 6x faster. The HTML downloads 3x faster. The uncompressed size of the HTML is reduced by a factor of 17.</p>
<p>Initial development of this plugin was commissioned by Google — many thanks!</p>


AJAX Comment Loading

Loads comments with a secondary AJAX request, including comment paging. Speeds initial loading of the page.

taisho

<p>A light plugin that automatically updates cart page and mini-cart when product quantity is changed. Removes the default “Update cart” button. Optionally turns off cart page notices.</p>
<h4>Features</h4>
<ul>
<li>Cart page and mini-cart widget are updated automatically on quantity change through Ajax (no page reloading).</li>
<li>“Update cart” button is removed from the cart page.</li>
<li>Both mouse and keyboard changes are supported.</li>
<li>Works for custom dropdown lists with ‘qty’ class.</li>
<li>Compatible with plugin <a href="https://wordpress.org/plugins/qty-increment-buttons-for-woocommerce/" rel="ugc">Qty Increment Buttons for WooCommerce</a>.</li>
<li>Uses the default WooCommerce cart update event.</li>
<li>Cart update is delayed by time in milliseconds since the last action affecting quantity, changeable in plugin settings, default 1000. It means that the update will fire only once when the customer is done with changes.</li>
<li>Optionally change min quantity in the cart from 0 to 1, on by default.</li>
<li>Optionally remove all notices from the cart page, on by default.</li>
</ul>


Ajax Cart AutoUpdate for WooCommerce

A light plugin that automatically updates cart page and mini-cart when product quantity is changed. Removes the default "Update cart" button …

AJAX Comment Loading vs Ajax Cart AutoUpdate for WooCommerce