Mark Jaquith

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. This plugin has pages load without comments, and then uses a secondary AJAX request to pull down the comments. 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.
Initial development of this plugin was commissioned by Google — many thanks!

AJAX Comment Loading

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

moiseh

WooCommerce AJAX Cart is a WordPress Plugin that changes the default behavior of WooCommerte Cart Page, allowing a buyer to see the Total price calculation when change the Quantity of a product, without need to manually click on “Update cart” button.
This improves the user experience when purchasing a product. No other hacks/code/theme changes is needed, this functionality is added when the plugin is activated.
You can try and play with this plugin demonstration <a href="https://tastewp.com/new?pre-installed-plugin-slug=woocommerce%2Cwoocommerce-ajax-cart&redirect=plugins.php&ni=true" rel="nofollow ugc">clicking here</a>
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/nXUjO2cGljs?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Free version features:
<ul>
<li>Automatically reload and recalculate Cart using AJAX when quantity changes</li>
<li>Show -/+ buttons around item quantity on cart page</li>
<li>Show item quantity as select instead numeric field</li>
<li>Show user confirmation when change item quantity to zero</li>
</ul>
Premium version features:
<ul>
<li>Allow to change/synchronize quantities in shop, minicart and single product pages <a href="https://youtu.be/a4w8wNlZhxk" rel="nofollow ugc">view demo</a></li>
<li>Make the <code>Add to cart</code> button to perform with AJAX, without full page reload <a href="https://youtu.be/o0VPfMCIctc" rel="nofollow ugc">view demo</a></li>
<li>Faster AJAX reload call when change quantities in Cart page</li>
<li>Option to lock quantity inputs to allow only change using plus and minus buttons</li>
<li>Update price vs quantity calculation automatically on Single Product pages</li>
</ul>
If you looking for a related plugin with more complete features maybe you can try <a href="https://wordpress.org/plugins/woo-better-usability" rel="ugc">WooCommerce Better Usability</a> plugin.

WooCommerce Ajax Cart Plugin

WooCommerce AJAX Cart is a WordPress Plugin that changes the default behavior of WooCommerte Cart Page, allowing a buyer to see the Total price calcul …

AJAX Comment Loading vs WooCommerce Ajax Cart Plugin