The online tool GTmetrix is able to analyze your website without charging anything and show you a list of plugins having high load times. You can consider replacing them, especially if they are being called a lot of times with a lighter option.
Lazy load multimedia
Lazy loading refers to pictures, videos as well as iframes, which are only loaded when users scroll down the page and take a look at them. This could highly better the initial load times of your pages.
In the past, this used to be something you would adopt thanks to Java Script instead of lazy loading integrated in your web browsers. Word Press users have a lot of options to choose and two highly recommended ones are Lazy Load by WP Rocket and a3 Lazy Load, which is specially made for mobile devices.
Take advantage of fast social media sharing links
Nowadays, you may want people to share your content through social media. On simple HTML sites, you can make use of a link generator tool such as the free Share Link Generator by which you can create social sharing links for Facebook, Twitter and Pinterest without depend much on iframes or Java Script. It is often the case that WordPress users do not have a limited source of plugins that they can use for this aim such as Social Warfare and Grow.
Uninstall unnecessary plugins
A CMS such as WordPress would have many plugins which can add benefits to your website. Nevertheless, having too many plugins would lead to the slowdown on your website, which is the reason why you had better run the ones that you are truly in need.
In addition, not all plugins are designed to be the same and you can speed the website up by replacing a plugin using a faster alternate. The online tool GTmetrix is able to analyze your website without charging anything and show you a list of plugins having high load times. You can consider replacing them, especially if they are being called a lot of times with a lighter option.
What is more, WordPress users can also make use of the Query Monitor Plugin for a more informative analysis of the plugins used on the website. But you should note that you need to remove the Query Monitor plugin.