It will speed up the checkout of WooCommerce by deferring the transactional emails. No settings, just install it and activate it.

Defer Transactional Emails for WooCommerce | Speed up the WooCommerce checkout

<p>It will speed up the checkout of WooCommerce by deferring transactional emails.</p>
<p>In many environments the emails that are sent when the user places an order slow down the checkout process.<br />
Deferring those emails can drastically speed up the checkout in those cases.</p>
<p>The difference in terms of performance will be huge in some environments and not noticeable in others.<br />
Anyway, if you have a slow checkout, try this plugin. If the slowness was caused by the sending of the emails, you will probably solve the issue by deferring the emails.</p>
<p>To defer the transactional emails, just install this plugin and activate it. It has no settings.</p>
<h3>How to speed up the WooCommerce checkout by deferring the transactional emails</h3>
<ul>
<li>Install Defer Transactional Emails for WooCommerce</li>
<li>Activate it</li>
</ul>
<h3>How to further speed up the checkout in WooCommerce</h3>
<ul>
<li>Install and activate <a href="https://shop.josemortellaro.com/downloads/checkout-speedup-for-woocommerce/" rel="nofollow ugc">Checkout Speedup For WooCommerce</a></li>
<li>Go to Checkout Speedup For WooCommerce =&gt; Main Settings =&gt; Disable the theme during the checkout process</li>
<li>Go to Checkout Speedup For WooCommerce =&gt; Main Settings =&gt; Defer the transactional emails</li>
<li>Go to Checkout Speedup For WooCommerce =&gt; Plugins active during checkout =&gt; Disable all the unneeded plugins that WordPress loads during the checkout process</li>
</ul>


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