Please check out your server response time. This is the main reason that the ajax script which is responsible for the adding to the cart need all this time.
Also you can install total cache plugin to fix the speed issue problem.
This is not true. When I test the page with a different template the products are shown really fast, this is on the same server. So server side is not the problem.
When I activate your template and check it with the query monitor there are to many requests, this is why the server can give such a late response.
Summary: when using your template the hosting should be a Private server because shared hosting is too slow??
This can not be the service you guys want to provide….
Come on…
