WooCommerce provides options to customize emails for –
WooCommerce Emails Settings Screen
Important – Make sure you give your customers a perfect checkout experience. The WooCommerce Checkout Settings area is the place to do your checkout settings of your online store.
You can tweak the content of the email type like –
Whether the email is to be send or not.
Email Type (HTML, Plain, Multipart).
Default WooCommerce Emails
Customize WooCommerce Emails by Overriding Email Templates
WooCommerce allows to customize the email even further by copying the relevant file into your theme. For example to override New Order email, copy the admin-new-order.php file (located in plugins/woocommerce/emails) to yourtheme/woocommerce/emails/admin-new-order.php, and do the customization in these files.
Is your website slow? There is a plugin called W3 Total Cache that will help you to solve this problem within minutes.
In the same way you can create WooCommerce Custom Email for other email types also.
Customized WooCommerce Emails
WooCommerce Settings Tutorials
Below are the WooCommerce Settings tutorials which will help you to do various setting in your Website.