In reply to Peter.

Hi Peter,

In one way or another, yes. On the back-end, it removes menu items from the Dashboard's sidebar & toolbar, removes blog-related meta boxes on the Dashboard page, and removes blog-related widgets. On the front-end, feeds, pingbacks, trackbacks, XML-RPC, Windows Live Writer, and query strings from static resources are removed from the header.

You can see the complete list of features that are removed from the front and back end here.

As a result, since there less functions running, the page size is reduced, less requests are made, and the load-time is decreased. Also, since all feed related links are removed, it prevent bots from crawling your unused links.

While this indirectly helps your website's performance, that is not the main purpose of this plugin. I'd recommend looking into the following plugins that help with website performance:

> Autoptimize - aggregates and minimizes JS, CSS and HTML
> TinyPNG - compress JPEG and PNG images
> Imsanity - automatically resizes huge image uploads