If you have a website on WordPress and want to improve its overall functionality and performance, use third party plugins, like MonsterInsights, Page Builder, etc.
Here are a few plugins to use:
MonsterInsights plugin allows you to connect your WordPress website with Google Analytics, so that you can analyse your website as well as the source of its visitors.
Page Builder has been developed by SiteOrigin. It is one of the most popular page creation plugins for WordPress. It helps you to create responsive column based content.
Download UpdraftPlus WordPress Backup Plugin
This plugin helps you to take backups. It supports backup to cloud (Amazon S3 (or compatible), Dropbox, Google Drive, Rackspace Cloud, DreamObjects, FTP, Openstack Swift, etc.
All in One SEO Pack
All in One SEO Pack helps you to optimise your WordPress site. It is easy to use and has advanced features as well as an API for developers.
Support features of all-in-one SEO Pack:
Google AMP support (Accelerated Mobile Pages)
Google Analytics support
Support for SEO on Custom Post Types
Advanced Canonical URLs
Redirect attachment pages to parent post
Google XML Sitemaps
This is the favourite plugin of SEO professionals. Use it to generate XML sitemap, which helps search engines like Google, Bing, Yahoo and Ask.com to index your blog.
This is a powerful eCommerce plugin that allows you to sell anything. It integrates easily with WordPress. This plugin gives you complete control over your online store.
Wordfence security is the best way to secure your WordPress website.
Premium API key that gives you Premium Support
Real-time updates to the Threat Defense Feed
Two-factor authentication, etc.
MailChimp for WordPress
It helps you to add more subscribers to your MailChimp lists by using various methods. Use it to create effective and functional opt-in forms or integrate with any other form on your site, such as your comment, contact or checkout form.
This plugin helps you to generate locational breadcrumb trails for your WordPress website/blog. These breadcrumb trails can be customised.
WP-Optimize is a powerful tool for cleaning your database so that it runs at the maximum efficiency. It is designed to remove all unnecessary data and fragment MySQL tables.
Broken Link Checker
This plugin helps you to monitor your blog’s broken links. It also detects links that do not work or have complex redirections.
This plugin allows site administrators to close the website for maintenance and enable “503 Service temporarily unavailable”, set a temporary page with authorisation.
So, use all the above mentioned WordPress plugins to improve the performance of your website.