How to Fix a Slow WordPress Site
January 30, 2026 Posted by Matthew Widdop Round-Up 0 thoughts on “How to Fix a Slow WordPress Site”There’s nothing worse as far as user experience goes online, than running into a slow website. People’s attention spans are shorter than ever, and no one wants to wait for a page to load that’s creaking and groaning. Users want instantaneous, snappy access, and the numbers back it up. Valentina Orlandi, Product and Content Marketing Manager at WPRocket, wrote this week,
“Google’s research shows that as page load time increases from one second to three seconds, the probability of a visitor bouncing increases by 32%. Push that to five seconds, and the bounce probability jumps to 90%.”
Losing over 30% of your traffic for a marginal difference in load times is a bitter pill to swallow, but on the flip side this means making your site faster could potentially see huge increases in high-quality traffic and increased conversions. Seems an easy win, right? Speed up your site and improve everything exponentially. Well, many site owners still aren’t taking the necessary steps to improve site speed issues, as they don’t understand the drastic impact these issues have and the steps required to improve them. But don’t fear, in this article, we’re going to go through some simple and effective steps you can take to address site speed issues on your WordPress site.
Site Speed Audit – Page Speed Insights
The most important step to understanding what is affecting your site speed is to run a site speed audit. You can do this using Google’s very own Page Speed Insights. This tool gives you a numerical performance score out of 100 based on how well your site is performing on both desktop and mobile. It will also tell you what the key issues are affecting performance and how to address them. Some common issues that people face affecting site speed include:
- Largest Contentful Paint (LCP)
This measures how long it takes for the main part of the page to fully appear, such as a large image or headline. It’s important because it reflects when the page feels “ready” to the user, rather than just when it technically starts loading. - Reduce Unused CSS
Websites often load styling code that isn’t actually needed for the page being viewed. Removing this unused code makes the page lighter and faster because the browser has less to download and process. - Reduce Unused JavaScript
JavaScript controls interactive features on a website, but many pages load scripts they don’t use. Cutting out unnecessary JavaScript reduces the work the browser has to do, helping pages load and respond more quickly. - Minify CSS
This means shrinking the CSS code by removing spaces, comments, and extra characters that humans use for readability but computers don’t need. Smaller files download faster, which improves page speed. - Minify JavaScript
Just like with CSS, this removes unnecessary characters from JavaScript files without changing how they work. The result is smaller file sizes and faster loading times. - Optimise Image Sizes
This means making sure images are no bigger than they need to be and are saved in efficient formats. Properly sized and compressed images load much faster and stop pages from feeling slow or heavy.
These are just some of the many issues affecting site speed performance but if your site currently has no optimisations in place, even implementing changes to improve these core aspects of your site can see a positive impact in speed performance.
Install All-In-One Performance Plugin
When these issues we have discussed appear on your insights report, it will give you different methods to fix the issues that are hindering your site. While many of these issues can be solved by developers meticulously going through your website with a fine-tooth comb, it is often extremely time-consuming and a waste of resources. For example, in order to reduce and minify CSS and JavaScript manually, your developer would have to go through thousands of lines of code, deleting unnecessary lines, which becomes a tedious and laborious task for often already very busy developers!
There are a number of different WordPress plugins you can use to improve different site performance issues and PageSpeedInsights will often recommend them to you. However, one of the most important plugins to have is an all in one performance plugin. These plugins will simultaneously allow you to fix issues with caching, file optimisation, minifying and reducing JavaScript, lazy loading images for faster load times and more. Having one plugin that solves a number of different issues on your site is smarter than downloading a large number of individual plugins to fix different issues. Some of the most popular plugins include WPRocket, WP-Optimize and LiteSpeedCache.
Using one of these plugins is a great base for fixing site speed issues and tackling the core problems that your site may face. Of course, these plugins won’t be able to fix every and all issues that your site faces when it comes to performance and having a deeper dive into your PageSpeedInsights and reading some of the material that Google provides may help address further issues.
What This Means for Marketers
If you’re pumping money into your SEO and PPC to improve performance but neglecting site speed, think again. Site speed is one of, if not the most crucial, factors that affect the user experience and following these simple steps, running a site speed audit and incorporating a performance plugin into your site, could help your traffic levels soar to new heights and make sure that all your hard work in other areas doesn’t go to waste.




