In the digital world, speed is the ultimate currency.

While many business owners focus purely on the visual design of their site, the underlying performance is what actually drives results. You can have the most beautiful shop in Hong Kong, but if the door is stuck and takes 10 seconds to open, your customers will walk away to the competitor next door. We've all been there, standing looking at your phone -"Why is it taking so long to load?".

The Cost of Waiting

Widely quoted research shows that even a 1-second delay in page load time can lead to:

A 7% reduction in conversions.
An 11% decrease in page views.
A 16% drop in customer satisfaction.

For a business generating $100,000 HKD a month, that 1-second delay could be leading to $7,000 HKD in unrealised revenue every single month.

Metrics That Matter

Google's Core Web Vitals are the trio of user experience metrics that Google uses as a primary ranking factor for their search results. If your site is slow, it won't just frustrate users—it will actually be harder to find on search engines.

LCP (Largest Contentful Paint) - How fast does the main content load?
INP (Interaction to Next Paint) - How long does it take for the site to respond to user interactions?
CLS (Cumulative Layout Shift) - Does the page jump around while loading or interacting with it?

You can view your website performance on Google PageSpeed Insights. The first section displays what users actually experienced in the last 28-days, the section below is a simulated test which emulates your site on an older device with a slower connection.

It's easy to assume your site doesn't have a problem when you're sitting at your desk on your local wifi. The reality is that many users may be sitting on the train using a six year old phone. Equally, your site might work well on desktop, but Google prioritises Mobile performance first when ranking search results. This makes sense when you realise where the most real customers are, but that is a topic for a future article.

My Approach to Performance

When building a site, performance isn't just another stat, it's foundational. Modern frameworks like Next.js allow me to consistently deliver quick page load times.

Optimised Images: Serving the exact right size image for every device, compressed and formatted correctly.
Server Side Rendering: Delivering pre-loaded content instantly from the cloud, as opposed to it loading on your computer.
Efficient Codebase: Only necessary code is loaded, performance is considered for every addition.

The Result? A site that feels "lightning fast," keeps users engaged, and ultimately drives more business and keeps users attentive.

Sources & Further Reading

Google Search Central: Understanding Core Web Vitals and Search Results
Nielsen Norman Group: The Need for Speed: 100ms is the Limit
Akamai: Milliseconds Are Critical
Global Newswire: The Performance of Web Applications: One Second Wonders for Winning or Losing Customers