Plugin slow performance

Unfortunately, I do not find the WordPress comment form on your page.

The WP-Ajaxify-Comments does not affect the performance of the WordPress site. Technically, the comments are posted the same way as the are posted without the plugin. The only difference is, that the data is transfered in the background from the client (browser) to the server and not by reloading the complete page.

Have you also done some performance tests before activating the plugin? IMHO, you have to find out, what happened when the comment data is sent to the server and what slows down you system (like spam detection).

Hope this helps…