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Slow website on mobile? 10 ways to speed it up (and save your visitors' data)

Images, caching, hosting, plugins, fonts: 10 practical actions to make your website fast on smartphones and lighter on data in Cameroon.

By ZoomLab Editorial

3 min read

In short: in Cameroon, most of your visitors arrive on a smartphone, over a mobile connection with a limited data bundle. A heavy website is a website people leave before it loads. Compressing images, turning on caching, limiting plugins and choosing performant hosting often cut page weight and load time by half or more.

Why speed is vital for a Cameroonian website

  • Your visitors are on mobile: over 25 million mobile connections in Cameroon, for around 12 million Internet users (DataReportal 2026). Mobile isn't a secondary version of your site: it is the main one.
  • Data costs money: a 5 MB page eats into your customer's bundle. An 800 KB page respects it.
  • Patience is limited: every extra second of waiting drives some visitors away, especially on a patchy network.
  • Google measures speed: performance indicators (Core Web Vitals) influence your ranking in search results.

Measure before you act

Test your site with PageSpeed Insights (free, by Google) in mobile mode. Look in particular at:

  • LCP (when the main element appears): aim for under 2.5 seconds;
  • total page weight: aim for under 1.5 MB, ideally under 1 MB;
  • the number of requests.

Test again after each improvement to measure the gain.

The 10 levers

1. Compress and resize images

It is almost always the first problem. A photo taken on a smartphone weighs 3 to 5 MB; displayed in an 800-pixel block, it should weigh 100 to 200 KB. Resize before uploading, or use a compression plugin.

2. Switch to WebP (or AVIF)

These modern formats offer quality equivalent to JPEG at a much smaller size. All recent browsers support them.

3. Turn on lazy loading

Images further down the page only load when the visitor gets close to them. WordPress turns this on by default; check that your theme doesn't disable it.

4. Turn on caching

Without caching, every visit forces the server to rebuild the page. With caching, the page is ready to serve instantly. On WordPress, a well-configured caching plugin changes everything.

5. Limit plugins

Each plugin adds code, requests and sometimes scripts on every page. Take stock and remove the ones you can do without.

6. Choose a lightweight theme

Some all-in-one themes load dozens of features you don't use. A clean, well-coded theme is a much healthier foundation.

7. Trim fonts and external scripts

Every font, every social media widget and every tracking tool adds weight and connections to other servers. Keep to two fonts at most and remove unnecessary scripts.

8. Avoid autoplay videos

A background video can weigh more than the rest of your site put together. Use an image instead, and offer the video on click, ideally hosted on YouTube.

9. Use a recent PHP version

Recent PHP versions (8.x) are significantly faster than older ones. In cPanel, you can usually switch versions in a few clicks; check your site's compatibility before changing.

10. Choose performant hosting

An overloaded or poorly configured server will slow down even a perfectly optimised site. Good hosting offers fast disks, an up-to-date server configuration and enough resources for your site.

The bonus that changes everything: think mobile first

Design every page by asking what a customer sees on a small screen with an average connection: the essential information (what you do, your price, your WhatsApp number) should appear immediately, without waiting for a carousel or a video to load.

Frequently asked questions

What is the ideal size for a web page?

Aim for under 1.5 MB, and ideally under 1 MB for your home page. It is a matter of comfort for your visitors and of saving their data.

Is a CDN useful for a Cameroonian website?

A CDN caches your files on servers spread around the world. It is mainly useful if your visitors are geographically dispersed (diaspora, international customers) or if your traffic is high. For a local site, the optimisations above come first.

Could my hosting explain why my site is slow?

Yes, if it is overloaded or poorly configured. But in most cases, images and plugins are the main culprits. Measure first, optimise next, and change host if the server's response time stays high.

Need fast hosting with PHP 8 and cPanel? Explore our plans, or ask us for a quick audit of your site.

Tags performance mobile speed WordPress SEO

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