More plugins don’t automatically result in a more functional website. In fact, installing too many plugins can actually make your site slower. Plus, including the extra code required by plugins can also weigh your site down.

YES.  Some plug-ins are necessary, such as Google Analytics and an SEO plugin.  So too, are those plugins specifically relevant to your business or profession in order to make your site more responsive.  BUT, be discriminating, and limit plugins to ones that you’ll truly need and use. Sometimes to optimize, less is more.