AJAX Comments Refueled allows for pages to be cached without needing to invalidate on new comments,
and is useful for upgrading the default comment system to not rely on page refreshes for replying to comments.
This plugin is a zero-dependency implementation. This means that it does not require jQuery.
How To Use
Simply install and activate this plugin and it will work – there are no options to fuss over.
Simply upload the zip using the Add New Plugin feature within WordPress admin as per usual.