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Web Performance: Why a Fast Website Is About More Than Just Speed

Website Optimization & Performance Best Practices for Faster Pages, Better User Experiences and More Conversions

📅 Web Performance ⏱️ 10 min read

You spent money getting someone to your website.

Maybe they clicked a Google ad.

Maybe they found you through SEO.

Maybe they saw your Facebook post.

Maybe they heard your company advertised on a podcast or radio station.

Maybe someone recommended you.

They click.

And then...

They wait.

The page starts loading.

A giant image appears.

Something moves.

The button they were about to press jumps halfway down the screen.

They wait another second.

And they're gone.

This is one of the most overlooked problems in digital marketing:

You can spend enormous amounts of money generating traffic and then lose potential customers because your website performs poorly.

Web performance isn't simply an IT problem.

It's a marketing problem, user-experience problem and potentially a revenue problem.

What Is Web Performance?

Web performance is essentially how quickly and smoothly a website works for the person using it.

That includes more than how many seconds it takes for the entire page to finish loading.

A visitor cares about questions like:

How quickly can I see the important information?

How quickly can I click something?

Does the website respond when I interact with it?

Does the page jump around while it's loading?

Can I easily use it on my phone?

That distinction matters.

A website can technically be "loading" in the background while already feeling fast and usable.

Another website might technically load in a similar amount of time but feel painfully slow because the visitor can't do anything.

That's why modern website performance needs to be evaluated from the customer's perspective.

Google Core Web Vitals: Three Measurements Business Owners Should Know

You don't have to become a web developer to understand the basics of website performance.

Google currently emphasizes three Core Web Vitals that represent loading performance, responsiveness and visual stability.

Largest Contentful Paint — LCP

LCP measures how quickly the main content of the page becomes visible.

Google's "good" target is 2.5 seconds or less for at least 75% of page visits.

In plain English:

How long does the customer wait before the important part of the page actually appears?

Interaction to Next Paint — INP

INP measures responsiveness.

You tap something.

Click something.

Interact with the page.

How quickly does the website visually respond?

Google's current "good" threshold is 200 milliseconds or less at the 75th percentile.

Cumulative Layout Shift — CLS

Have you ever tried to press a button just as an advertisement or image loaded and suddenly the entire page moved?

That's exactly the type of frustrating experience CLS measures.

Google considers a CLS of 0.1 or less good.

The technical names aren't as important as what they represent:

Load quickly.

Respond quickly.

Don't jump around.

That's good web performance.

Test Mobile First

One of the biggest mistakes businesses make is evaluating their website from the office.

They're sitting at a $1,500 computer.

Connected to high-speed internet.

Using a large monitor.

Of course the website looks great.

That's not necessarily how the customer experiences it.

Your customer might be standing in a parking lot using an older smartphone with a weak cellular connection.

That's the experience you should care about.

Test your website on real phones.

Try different pages.

Try the navigation.

Submit the forms.

Press the buttons.

Call the phone number.

Book an appointment.

Try actually behaving like a customer.

Images Are Often Performance Killers

Modern smartphones take enormous photographs.

Uploading those files directly to a website can create unnecessary performance problems.

A website doesn't necessarily need a gigantic multi-megabyte photograph just to display an image that's a few hundred pixels wide on a phone.

Images should be properly:

Modern image formats can dramatically reduce file sizes in appropriate situations without creating an obvious loss in visual quality.

Lazy loading can also help by delaying certain off-screen images until they're actually needed.

The goal isn't making your website ugly.

It's delivering the visual experience efficiently.

Video Can Be Even Worse

That beautiful full-screen video playing behind your homepage headline might look incredible.

It might also be making thousands of visitors download a huge video file before they can comfortably use the website.

Ask:

Does this video actually help sell the product?

If yes, optimize it.

If not, maybe it doesn't belong there.

Website design shouldn't become a contest to see how much animation, video and movement can fit onto a homepage.

Every design element should earn its place.

Stop Installing Plugins for Everything

This is particularly important with content management systems.

Need a contact form? Plugin.

Need social icons? Plugin.

Need analytics? Plugin.

Need animation? Plugin.

Need popups? Plugin.

Need SEO? Plugin.

Need image compression? Another plugin.

Soon your website has dozens of pieces of third-party software loading code.

Some plugins are extremely useful.

The problem is installing software without considering its performance, security and maintenance costs.

Before installing another plugin, ask:

Do we actually need this?

JavaScript Can Become Expensive

Modern websites often rely heavily on JavaScript.

Each addition might seem insignificant by itself.

Together, they can become substantial.

This is especially important for marketing departments.

Marketers frequently add tracking scripts without realizing that each script can potentially affect performance.

You should absolutely measure marketing.

But occasionally audit what's installed.

If you stopped using a marketing platform two years ago, why is its tracking code still loading on every page?

Your Hosting Matters

You can optimize images and clean up code, but the website still needs infrastructure capable of delivering it efficiently.

Cheap hosting can become expensive when poor performance costs customers.

Hosting considerations can include:

The right hosting solution depends on the website.

A small local service-business website has different requirements than an ecommerce operation receiving millions of visits.

Don't automatically buy the most expensive hosting.

But don't assume hosting is irrelevant either.

Use Caching

Imagine a restaurant making you wait while the chef recreates the menu from scratch every time you ask to see it.

That's obviously inefficient.

Caching follows a similar principle.

Instead of rebuilding or downloading everything every time, certain website resources can be stored temporarily so they're delivered more efficiently.

Caching can occur in multiple places, including the browser, server and content delivery network.

A properly configured caching strategy can make repeat visits significantly faster.

Consider a Content Delivery Network

If your website's server is located in one place but customers visit from many places, a Content Delivery Network — commonly called a CDN — can help deliver certain website resources from infrastructure closer to users.

For many businesses, this can improve speed and reliability.

Again, you don't necessarily need to understand every technical detail.

You need to understand the business objective:

Get the website to the customer efficiently.

Fonts Have a Performance Cost Too

That beautiful custom font isn't free from a performance perspective.

The browser may need to download font files before text displays correctly.

Using numerous fonts, multiple weights and unnecessary variations can increase the amount of data being transferred.

Good design doesn't require twelve typefaces.

Often, simplicity looks better and performs better.

Don't Forget the Homepage Hero

The giant image at the top of the homepage is frequently one of the largest things the browser has to load.

That's especially important because Google's Largest Contentful Paint measurement often involves prominent content in the initial viewport.

If your homepage begins with a huge unoptimized image, you're potentially slowing down one of the most important moments in the customer experience.

Optimize it aggressively.

Performance Problems Can Hide Inside Third-Party Tools

Sometimes the website itself isn't the biggest problem.

The problem is everything attached to it.

Each tool might provide legitimate business value.

But each should earn its performance cost.

Ask:

Does this feature create enough value to justify what it adds to the page?

Don't Optimize for a Score. Optimize for People.

This is important.

A website optimization project can become obsessed with achieving a perfect score.

100.

We need 100!

But the objective isn't winning a video game.

The objective is creating a fast, reliable experience for real customers.

Google's PageSpeed Insights provides both lab data and field data. Lab testing helps diagnose issues under controlled conditions, while field data reflects actual experiences from real users.

Both can be useful.

But don't destroy a useful business feature simply because removing it moves a performance score from 96 to 99.

Use performance tools as diagnostic tools.

Then make business decisions.

Measure Before You Fix

Don't randomly start deleting things from the website.

Establish a baseline.

Google's PageSpeed Insights can evaluate pages on both mobile and desktop and provide recommendations for improvement. It incorporates Lighthouse testing and, where available, real-world Chrome user experience data.

Look at:

Then prioritize the biggest problems.

Fix the Biggest Problems First

This sounds obvious, but website optimization can quickly become ridiculous.

A developer might spend two hours saving 20 kilobytes while ignoring a 5-megabyte homepage video.

Prioritize.

A sensible process is:

Measure → Identify → Prioritize → Fix → Test → Measure Again

Don't optimize based on guesses.

Website Performance Should Be Monitored

Here's another mistake:

A developer optimizes the website.

It becomes fast.

Everyone celebrates.

Six months later, marketing uploads 40 giant images.

Someone installs six plugins.

A new chat widget gets added.

Three tracking systems are installed.

A video is added to the homepage.

And the fast website isn't fast anymore.

Performance isn't necessarily a one-time project.

It should be monitored.

AI Can Help Find Performance Problems Faster

AI is also changing website optimization.

Developers can increasingly use AI tools to help:

Eventually, performance monitoring can become increasingly proactive.

Instead of discovering six months later that the website became slow, automated systems can identify changes as they happen.

Performance Should Be Connected to Marketing

This is where website performance becomes particularly interesting.

Suppose you spend:

$5,000 per month on advertising.

Those advertisements generate thousands of website visitors.

But your landing pages are slow.

Fixing performance could potentially improve the experience of every person arriving from those campaigns.

That's why website optimization shouldn't live exclusively with the development department.

Your:

and every other traffic source eventually collide with one thing:

The website.

If the destination doesn't work well, improving the road leading to it only solves half the problem.

Speed Is Part of Your Brand

Customers don't separate technical performance from your company.

They don't think:

"This business is wonderful. Their JavaScript bundle is simply inefficient."

They think:

"This website sucks."

Or:

"That was easy."

Those experiences become part of how they perceive the company.

A fast website feels modern.

A responsive website feels professional.

A stable website feels trustworthy.

A frustrating website can make the business itself feel frustrating.

The Fastest Website Isn't Necessarily the Best Website

You could create an incredibly fast website containing nothing but:

Company Name

Phone Number

That's fast.

It's also probably not very useful.

The goal isn't stripping away everything that makes a website valuable.

The goal is finding the right balance between:

DESIGN + CONTENT + FUNCTIONALITY + TRACKING + PERFORMANCE

That's good optimization.

Is Your Website Performance Costing You Customers?

Let's evaluate your website's performance and identify optimization opportunities.

Get an Audit →

Your Website Has About One Job: Don't Get in the Customer's Way

Customers aren't visiting your website because they want to admire your technology stack.

They want something.

They want a plumber.

A lawyer.

A restaurant.

A product.

An appointment.

A quote.

Information.

Directions.

An answer.

Your website's job is to help them get there with as little friction as possible.

That means the page should appear quickly.

The important information should become visible quickly.

Buttons should respond quickly.

Content shouldn't jump around.

Forms should work.

Navigation should make sense.

And the experience should work just as well on a phone as it does on a desktop computer.

Website optimization isn't about shaving milliseconds off a report simply so somebody can brag about a score.

It's about removing friction between a potential customer and the action you want them to take.

Because every advertisement, search result, social post and marketing campaign eventually has to send the customer somewhere.

Make sure your website is ready when they arrive.

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