30+ WordPress plugins that can use a lot of server resources and/or can slow down your site

Introduction

IN the post’s scope

Post’s intention is to HELP those people who have real speed problems on their sites with some of the below stated plugins by giving them some options/alternatives to try to solve those issues. 

Under different configurations, on different hosts, with some incompatible plugins installed, some plugins may cause issues that are otherwise hard to replicate. In that case this list may be helpful and serve as a troubleshooting guide to find an alternative solution or resolve those issues.

NOT in the post’s scope

In this post we list some of the popular WordPress plugins that can use a lot of server resources and/or can slow down your site. 
Post’s intention is NOT about proving that some plugins are 100% causing speed (or other resources) issues on web sites for majority of people, this is not a “blacklist” for plugins on it but rather “some users recommend if you’re having weird speed issues and have one of these plugins installed, try disabling it and see what happens, if some of the listed plugins are the culprit… or not”.
Usage of some plugins stated below on your site doesn’t mean that your site would automatically have a speed issue, especially if plugins are properly configured/setup.

Information sources for this post 

Information collected in this document is based on the admins’ personal experiences, personal experiences from users in many Quality WordPress Groups on Facebook, and from the companies that offer speed up services, on various hostings/setups/configurations environments in general.

General solutions

General solutions how to solve issues on your site caused by the particular plugins – problems could be solved in the following ways:
  • properly plugins configuration/setup, valid for majority of plugins
  • completely uninstalling problematic plugins, if possible, e.g. not needing plugins’ features
  • replacing the problematic plugins with the other plugins, if plugins’ features are needed
  • replacing the problematic plugins with the other tools, if plugins’ features are needed
  • using specialized plugins for site’s optimization, such as  Swift performanceWP RocketWP Fastest Cache, and many others depending on the personal preferences and projects’ needs.

Speed Up guide

If you wanna check some of the plugins’ impacts, you could see here.

However, the best approach would be to use speed up tools or install speed up plugins to check some plugins performances:

If you are interested to learn more on How to speed up WordPress website from the non-technical perspective, you can check our WordPress Speed Up guide.

If you have some concrete speed up questions or comments/inputs on this post, please be free to join us in the
WordPress Speed Up group on Facebook
,
with more than 6.000 knowledgeable and helpful members, and ask your questions.

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    • Swift Performance optimization freemium plugin 
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    • Use its Alternative Cache plugin
    • The host/server that uses memcached or Redis
    • ACF paid plugin
    • Toolset paid plugin
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    • Completely uninstall plugin
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    • Proper plugin’s configuration & optimization
    • Swift Performance optimization freemium plugin 
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If you have some concrete speed up questions or comments/inputs on this post, please be free to join us in the
WordPress Speed Up group on Facebook,
with more than 6.000 knowledgeable and helpful members, and ask your questions.

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