We’ve heard a lot about why the faster your site loads, the better your customer experience is, the higher your Page rank will be, and the higher your site will convert. Today, I’m going to address one of the more crucial areas of site speed, and also dispel one of the most common myths about how to make WordPress load fast.
WordPress speed performance can be broken down into three major areas of focus:
Speedy managed WordPress hosting – Investing in fast hosting like WP Engine offers is one of the simplest ways to get a big win here.
Streamlined code in your theme – Googling for “free WordPress theme” is not the best way to find a well-coded theme that loads quickly.
Installing only scalable plugins – This is what we’re going to dig into today. Every plugin adds a bit of complexity to your site, and it’s important to install well-developed plugins from a reputable source.
Plugins allow site owners to exert very specific control over site performance because plugins are simple to swap out and exchanged for one another. Installing and enabling is as easy as uninstalling and disabling. If one plugin is slowing your site down, you can find a faster one or remove it altogether. In general, we always want to have the fastest set of plugins possible for the features you want the plugins to add!
Dispelling A Myth
Can you have too many plugins? There is a common refrain heard in the WordPress ecosystem, spoken at Meetups and written in blog posts that you want to run as few plugins as possible because “having too many plugins will slow your site down.” This isn’t strictly wrong, but like anything that has to do with development, there’s a bit of nuance and subtlety you can dig into here.
Yes, more plugins will add more code that a browser has to load, which can slow it down. And to paint with very broad strokes, a website with a simpler codebase will usually load faster than one with a complicated one, all other things being equal. Since plugins are basically a way of adding code without having to write it yourself, telling new WordPress folks to run as few plugins as possible is great advice. It keeps people from installing 10 different Facebook plugins that all basically perform the exact same functionality.
Source : WPEngine