Major impact on site performance

While this plugin does what it says and worked for a client of mine’s purposes, it adds several scripts and CSS files to every page of your site.

I saw a 16 point increase on Pagespeed scores when disabling the plugin.

My recommendation to the developer would be to simply check and see if the plugin is being used on a page before enqueuing the scripts & styles, and also if possible add the scripts to the footer (because your plugin alone will force any calls to jquery.js which are already in the footer to then move that up to the header, creating yet another blocking resource).