Hello!
We have extensive experience with Wordpress and Woocommerce. We can definitely optimize load time and fix the wc-ajax issue.
Our skills: CMS Wordpress, HTML, CSS, Javascript, Jquery, Bootstrap, Php, MySQL, Adobe Photoshop, Illustrator, etc. Please, you can see our portfolio here https://www.freelancer.com/u/Webln .
Could you show your website, please? Waiting for yoru response!
With thanks,
WebIn team.