How to Speed Up a WordPress Site - 15 Proven Methods

Why does WordPress site speed matter?

The speed of your WordPress site directly affects three key areas: user experience, SEO rankings, and conversions. Google has confirmed it uses Core Web Vitals as a ranking factor, and research shows that 53% of visitors abandon a site that takes more than 3 seconds to load. Every second of delay can reduce conversions by 7%. Below we present 15 proven methods for speeding up a WordPress site that you can apply today.

1. Choose hosting with a LiteSpeed server

It all starts with hosting. LiteSpeed Enterprise web server is proven to be 2-5 times faster than Apache for PHP applications, including WordPress. LiteSpeed has a built-in cache module (LSCache) that works at the server level, which is much more efficient than any WordPress caching plugin. BeoHosting runs LiteSpeed Enterprise on all plans, which means your site has an advantage from the start. Take a look at our hosting plans with LiteSpeed. If you currently use Apache hosting, switching to LiteSpeed will give you an instant 30-50% speed boost without any other changes.

2. Use NVMe SSD drives

NVMe SSD drives are up to 7 times faster than traditional SATA SSDs and up to 30 times faster than HDD drives. Disk speed is critical for WordPress because every request involves reading files and querying the database. On an NVMe drive, MySQL queries execute significantly faster and files are read almost instantly. Check that your hosting uses NVMe rather than regular SSD drives.

3. Install and configure the LiteSpeed Cache plugin

LiteSpeed Cache (LSCWP) is a free WordPress plugin that uses the LiteSpeed server's built-in cache module. Unlike other cache plugins that work at the PHP level, LSCache works at the web server level, making it dramatically faster. Install the plugin, enable page caching, CSS/JS optimization, image optimization (WebP conversion), and CDN integration. LSCache also supports Object Cache (Redis/Memcached), database optimization, and image lazy loading.

4. Use the latest PHP version

PHP 8.4 is up to 3 times faster than PHP 7.4 for WordPress. Every new PHP version brings improvements in execution speed and memory consumption. In cPanel you can change the PHP version for your domain with one click via MultiPHP Manager. Before changing, check that your plugins and themes are compatible with the new version. If you use up-to-date plugins and themes, compatibility with PHP 8.4 shouldn't be an issue.

5. Optimize images

Images are the most common cause of a slow site - often making up 60-80% of total page size. Use the WebP format instead of JPEG/PNG because it provides 25-35% smaller size without quality loss. The LiteSpeed Cache plugin has built-in WebP conversion. Also use lazy loading (loading images only when they are visible on screen), responsive images (different sizes for different devices), and appropriate dimensions (don't upload a 4000px image for an 800px slot).

6. Minimize the number of plugins

Every WordPress plugin adds PHP code that runs on every request, CSS and JavaScript files that load, and potential database queries. The estimate is that each plugin adds 0.01-0.5 seconds to load time. Review your plugins and deactivate/delete anything you don't use. Many features that require separate plugins are already in LiteSpeed Cache (lazy loading, minification, CDN). Aim for a maximum of 15-20 active plugins.

7. Use a CDN (Content Delivery Network)

A CDN distributes your site's static assets (images, CSS, JavaScript) to servers worldwide. When a visitor from Japan visits your site, files are delivered from a server in Asia instead of Europe, dramatically reducing load time. Cloudflare offers a free CDN plan sufficient for most sites. Follow our Cloudflare setup guide. Integration with the LiteSpeed Cache plugin is automatic - you just enter the API key.

8. Optimize the database

The WordPress database accumulates unnecessary data over time - post revisions, spam comments, transients (temporary data), and meta data from deleted plugins. Use WP-Optimize or a similar plugin for automatic database cleanup. Set revisions to be limited to 3-5 per post by adding define('WP_POST_REVISIONS', 5) to wp-config.php. Regularly optimize MySQL tables to reduce fragmentation.

9. Enable Brotli compression

Brotli is a modern compression algorithm that is 15-25% more efficient than Gzip. It reduces the size of HTML, CSS, and JavaScript files transferred between server and browser. On BeoHosting, Brotli compression is automatically enabled on all LiteSpeed servers. Check that it is active using a tool like GTmetrix or PageSpeed Insights.

10. Use Object Cache (Redis or Memcached)

Object Cache stores results of frequent database queries in memory (RAM), eliminating the need to re-execute the same queries. For a WordPress site with 20+ plugins, Object Cache can reduce the number of MySQL queries by 50-80%. Redis is recommended because it supports persistent storage and advanced data structures. The LiteSpeed Cache plugin has built-in support for Redis and Memcached.

11. Minify and combine CSS/JS files

Each CSS and JavaScript file requires a separate HTTP request. Reducing the number of requests directly speeds up site loading. The LiteSpeed Cache plugin automatically minifies (removes whitespace and comments), combines (merges multiple files into one), and asynchronously loads CSS/JS files. Test carefully after enabling because aggressive optimization can break the look or functionality of the site.

12. Implement lazy loading for all resources

Lazy loading defers loading of resources that are not immediately visible on screen. This includes images, videos, iframes (YouTube, Google Maps), and even parts of the page. WordPress 5.5+ has built-in lazy loading for images, but LiteSpeed Cache offers a more advanced implementation with low-quality placeholders (LQIP) that improve the visual experience during loading.

13. Use a lightweight WordPress theme

The theme you use significantly affects site speed. Page builder themes like Divi or Elementor add significantly more code than lightweight themes. Consider themes like GeneratePress, Astra, or Kadence which are speed-optimized - they load in less than 0.5 seconds and generate minimal CSS/JS. If you already use a heavier page builder, make maximum use of its built-in optimization options and avoid additional plugins that duplicate theme features.

14. Configure browser caching

Browser caching tells browsers how long to keep static assets locally. When a visitor returns to your site, the browser uses locally cached files instead of re-downloading from the server. LiteSpeed automatically sets optimal expire headers for different file types (images: 1 year, CSS/JS: 1 month, HTML: 1 hour). Check the settings in .htaccess or the LiteSpeed Cache plugin.

15. Regularly monitor speed and optimize

Speed optimization is not a one-off task. Use our speed measurement tool, Google PageSpeed Insights, GTmetrix, and WebPageTest to regularly measure your site's performance. Track Core Web Vitals metrics: LCP (Largest Contentful Paint - target under 2.5s), FID/INP (interactivity - target under 200ms), and CLS (visual stability - target under 0.1). Set up monitoring to alert you when performance falls below an acceptable level.

Conclusion

Speeding up a WordPress site requires a holistic approach - from choosing the right hosting with a LiteSpeed server and NVMe SSD drives, through image and database optimization, to advanced techniques like Object Cache and CDN. Apply these 15 methods and your site will load in under 2 seconds, improving user experience, SEO rankings, and conversions. And if you're looking for hosting that already has LiteSpeed, NVMe, and LSCache included in the price, check out BeoHosting WordPress plans from €3.20 per month.