How Website Speed Boosted Google Ads Conversions (Case Study)

Most businesses launch Google Ads campaigns expecting instant leads.

But here’s the truth:

If your website is slow, you’re burning money.

During a recent Google Ads campaign for a logistics client in Kenya, we discovered something critical:

Over 87% of all clicks were coming from mobile devices.

That single insight changed everything.

Instead of adjusting ads first, we optimized the website.

And the results followed.

The Problem: High Mobile Traffic, Low Conversion Potential

Our campaign was generating consistent traffic, but conversions weren’t where they should have been.

After auditing the data, we noticed:

  • 90% of clicks came from mobile
  • The website wasn’t optimized for speed
  • Mobile users were experiencing slow load times
  • Important service information wasn’t immediately visible
  • Users were dropping off before converting

In short:

Great ads were sending traffic to a weak website experience.

This is one of the most common mistakes businesses make.

They focus on ads — and ignore performance.


The Data That Changed Our Strategy

Here’s what we uncovered from the campaign:

  • Total spend: $198
  • Total conversions: 29
  • Average CPA: $6.84
  • Mobile devices generated 87% of clicks
  • Mobile CPC: $0.16
  • Desktop CPC: $0.47

Mobile traffic was:

  • Cheaper
  • Higher volume
  • More engaged

Yet the website wasn’t built to convert mobile visitors.

So we shifted focus.

Step One: Website Speed Optimization

Mobile optimization plays a huge role in ad performance. We explain this in detail in our guide on why most Google Ads fail on mobile and how we fixed it for a Kenyan business, where we break down mobile user behavior and conversion mistakes.

Before scaling ads, we optimized the website.

Our goal was simple:

Make the site fast, clear, and conversion-ready.

What we implemented:

  • Image compression and performance cleanup
  • Improved Core Web Vitals
  • Mobile-first layout adjustments
  • Clear service sections above the fold
  • Faster load times across all pages
  • Stronger call-to-action placement

After optimization:

Page Speed Results

Page speed improved to 90–100% performance scores.

Now visitors could instantly understand:

  • What the business offers
  • How to contact them
  • Why they should choose them

No confusion. No waiting.

The Results: Faster Website = More Leads

Once speed and user experience were fixed, performance improved dramatically.

Results achieved:

  • Faster page loading
  • Better mobile usability
  • Higher engagement
  • Increased lead conversions
  • Lower cost per click

On peak days, we achieved:

  • $0.50 cost per acquisition
  • 22% conversion rates

These are real campaign results from a real Kenyan business.

Why Website Speed Matters for Google Ads and SEO

Here’s what most business owners don’t realize:

Google Ads doesn’t work alone.

Your website plays a massive role in success.

If your site is slow:

  • Users bounce
  • Quality Scores drop
  • Cost per click increases
  • Conversions fall

Speed directly impacts:

  • User experience
  • Ad performance
  • SEO rankings
  • Revenue

Today, mobile dominates traffic.

If your site isn’t optimized for mobile speed, you’re already behind your competitors.

The Biggest Lesson

Ads bring traffic.

Websites convert traffic.

You need both.

Running Google Ads without optimizing your website is like pouring water into a leaking bucket.

Is Your Website Costing You Leads?

If you’re running Google Ads or doing SEO but not getting consistent results, your website might be the problem.

At Axiom Web Solution, we help Kenyan businesses:

  • Optimize website speed
  • Improve mobile experience
  • Increase conversions
  • Run high-performing Google Ads
  • Generate qualified leads

Get a Free Website Speed Audit

Want to know if your website is killing your conversions? Our team specializes in SEO, Google Ads, and website speed optimization in Kenya for businesses that want predictable leads.

Send your website at info@axiomwebsoulution.com and we’ll run a free website speed check for your business.

Stop wasting clicks.

Start converting visitors into customers.

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