How to Speed Up WordPress Website — 10 Proven Steps (2026)

Cheap shared hosting on old Apache servers is the root cause of slow WordPress performance for the majority of beginner sites. No amount of caching or optimisation fully compensates for a fundamentally slow server.

What to look for in fast WordPress hosting:

• LiteSpeed servers — 6× faster than Apache for WordPress. Hostinger uses LiteSpeed on all plans.
• NVMe SSD storage — 3-5× faster read/write speeds than traditional SATA SSDs
• Server response time under 200ms — Check using Google PageSpeed Insights "Reduce initial server response time" recommendation
• PHP 8.2+ — Newer PHP versions are significantly faster. Ensure your host supports and enables PHP 8.2 minimum.

Without caching, WordPress rebuilds every page from scratch on every visit — running PHP, querying the database, and assembling HTML in real time. With page caching enabled, WordPress serves a pre-built HTML file instead — 10-50× faster.

LiteSpeed Cache essential settings (Plugins → LiteSpeed Cache → Settings):

• Cache → Enable Cache: ON
• Cache → Browser Cache: ON
• Optimize → CSS Minify: ON
• Optimize → JS Minify: ON
• Optimize → HTML Minify: ON
• Media → Lazy Load Images: ON
• Media → WebP Replacement: ON (if your host supports it)

After enabling these settings, test your site in a private browser window (to bypass your own browser cache) and run the free Page Speed Checker to verify improvement.

Images typically account for 50-80% of a page's total file size. Uploading full-size JPG or PNG files straight from a camera or design tool — often 3-10MB — is the most common cause of poor WordPress LCP (Largest Contentful Paint) scores.

Image optimisation process:

• Before uploading: Open Squoosh.app (free browser tool). Convert to WebP format. Set quality to 80%. Resize to maximum display width (1200px for blog posts, 800px for thumbnails). Target: under 100KB per image.
• For existing images: Install Smush plugin (free) and bulk-optimise all existing media library images.
• Hero images: The largest image above the fold drives your LCP score. This one image should be under 60KB and set with fetchpriority="high" in the HTML.

Many popular WordPress themes (Divi, Avada, OceanWP) include hundreds of kilobytes of CSS and JavaScript that load on every page — even when the features they power aren't used. Lightweight themes eliminate this bloat at source.

• Astra free — Under 50KB total. Fastest free WordPress theme. Compatible with all major page builders. Best for blogs and business sites.
• GeneratePress free — Under 30KB. Slightly more minimal than Astra. Excellent for performance-focused sites.
• Kadence free — Under 60KB. More design options than Astra with minimal performance compromise.

For a complete comparison of all top WordPress themes for speed, read our best WordPress themes for beginners guide.

A Content Delivery Network (CDN) caches your site's static files (images, CSS, JavaScript) on servers distributed worldwide — reducing the physical distance data must travel to reach each visitor. A visitor in Australia accessing a site hosted in the UK without a CDN experiences 200-400ms additional latency. With Cloudflare's global network, that drops to under 20ms.

• Sign up at cloudflare.com (free account)
• Add your domain and import DNS records (automatic)
• Update your domain's nameservers to Cloudflare's (in your domain registrar)
• Enable "Always Use HTTPS" and "Auto Minify" in Cloudflare settings
• Full propagation takes 24-48 hours — run a speed test after

Minification removes unnecessary whitespace, comments, and redundant code from CSS, JavaScript, and HTML files without changing their function. This reduces file sizes by 15-30% and decreases the total data transferred on each page load.

LiteSpeed Cache handles all minification — enable CSS Minify, JS Minify, and HTML Minify in Settings → Optimize. After enabling, test critical pages in incognito mode to ensure no visual or functional issues. Occasionally, JS minification breaks specific scripts — if something stops working, disable JS minification first to diagnose.

WordPress databases accumulate post revisions, spam comments, transients, and orphaned metadata over time — all of which increase database query times and slow page generation. Monthly cleanup keeps the database lean and fast.

• LiteSpeed Cache → Database — Clean post revisions, auto-drafts, orphaned data, and expired transients in one click
• Limit post revisions — Add define('WP_POST_REVISIONS', 5); to wp-config.php to keep only the last 5 revisions
• Always backup before cleaning — Run an UpdraftPlus backup before any database operation

Every active plugin adds PHP code, CSS, and sometimes JavaScript that loads on every page. Plugin quantity matters less than plugin quality — but 30+ plugins on a site will always be slower than 12 well-chosen ones covering the same functions.

• Delete any plugin not actively used — deactivated plugins still occupy filesystem space
• Check for plugin conflicts: deactivate all plugins except essentials, test speed, re-enable one by one
• Replace heavy multi-purpose plugins with lightweight single-function alternatives
• Never install two plugins doing the same job (two caching plugins, two SEO plugins)

Without lazy loading, every image on a page loads simultaneously when a visitor arrives — including images at the bottom of long posts that the visitor may never see. Lazy loading defers image loading until the image is about to enter the viewport, significantly reducing initial page load time and data usage.

• Enable in LiteSpeed Cache → Media → Lazy Load Images: ON
• WordPress 5.5+ includes native lazy loading by default — LiteSpeed Cache enhances this further
• Exception: your hero image (first visible image) should NOT be lazy loaded — add loading="eager" to your above-the-fold hero image

Cumulative Layout Shift (CLS) measures how much page content moves during loading. The most common WordPress CLS cause: images without width and height attributes in the HTML — the browser doesn't know how much space to reserve, so the page jumps when images load.

• WordPress 5.5+ automatically adds width and height attributes to images inserted via the media library — ensure you're up to date
• Check your theme's featured image implementation — some older themes omit dimensions
• Check for ads, embeds, or widgets that insert content above existing content on load
• Use Google PageSpeed Insights to identify specific CLS-causing elements with "Avoid large layout shifts" recommendations