10 January 2026
Your Website Is Too Slow (And It's Costing You Money)
By We Are Heylo
If your website takes more than 3 seconds to load, you're losing nearly half your visitors before they see a single word of content. That's not an exaggeration, it's what the data consistently shows.
The numbers are brutal
- 53% of mobile users abandon sites that take longer than 3 seconds to load
- A 1-second delay in page response can result in a 7% reduction in conversions
- Google uses page speed as a direct ranking factor for both mobile and desktop search
This means a slow site hits you three ways: fewer visitors, lower conversion rates, and worse search rankings.
Why most sites are slow
The usual culprits:
- Unoptimised images, a single hero image can be 5MB if nobody compresses it. It should be under 200KB
- Too much JavaScript, many sites ship megabytes of JavaScript, most of which isn't needed for the initial page load
- Render-blocking resources, CSS and JavaScript that prevents the page from displaying until everything is downloaded
- No caching strategy, making users re-download the same assets on every visit
- Cheap hosting, shared hosting is fine until your site needs to perform
What fast actually looks like
The benchmark to aim for:
- Largest Contentful Paint (LCP) under 2.5 seconds, ideally under 1.5
- First Input Delay (FID) under 100 milliseconds
- Cumulative Layout Shift (CLS) under 0.1, nothing should jump around as the page loads
These are Google's Core Web Vitals, and they directly impact your search rankings.
Quick wins that make a real difference
You don't always need a complete rebuild to improve performance:
- Compress and resize images, use modern formats like WebP or AVIF, and serve the right size for each device
- Lazy load below-the-fold content, don't load images and videos the user hasn't scrolled to yet
- Minify CSS and JavaScript, remove unnecessary whitespace and comments
- Enable compression, gzip or Brotli compression can reduce file sizes by 70%
- Use a CDN, serve your assets from servers close to your users
When you need a proper rebuild
If quick fixes don't get you to acceptable performance, the problem is usually architectural:
- Legacy platforms like older WordPress setups with dozens of plugins are inherently slow
- Client-side rendering that forces users to download an entire JavaScript application before seeing content
- Database-heavy pages that make dozens of queries per page load
Modern frameworks like Next.js solve these problems by default, static generation, automatic code splitting, built-in image optimisation, and edge caching. A well-built Next.js site can achieve sub-second load times with minimal effort.
The ROI is real
We've seen clients double their conversion rates simply by making their site faster. No design changes, no new content, no additional marketing spend, just speed. It's one of the highest-ROI investments you can make in your digital presence.
This article was written by the team at
We Are Heylo
We're a branding & digital studio for businesses that refuse to blend in. Based in London and Singapore.
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