Shopify speed optimization

Make your Shopify store fast for real shoppers.

We find what slows your store down and fix it in the theme code: images, fonts, app scripts and render-blocking CSS. No speed booster apps, no tricks for the test tool.

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Mobile speed score going from 48 to 99 and LCP from 13.3 s to 1.5 s on the Pontemasfriki collection page. Mobile performance Pontemasfriki, collection page Before fixes 48 PageSpeed score Mobile LCP 13.3 s What loads before the page shows theme.css fonts hero.jpg old-app.js slider.js tracking x2 What a shopper sees on a phone
88% Faster mobile LCP on Pontemasfriki
99 Collection page PageSpeed score, up from 48
5+ Years building on Shopify

Results

From 13.3 seconds to 1.5.

On Pontemasfriki, the main content on mobile now shows up in 1.5 seconds, and the collection page scores 99 on PageSpeed. Results depend on the apps you keep, so we give you a realistic target after the first measurement.

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PageSpeed score Collection page
  • Largest Contentful Paint (mobile) 13.3 s1.5 s

Pontemasfriki, a Shopify store we work on. Measured with PageSpeed Insights.

What we usually find

What slows most Shopify stores down.

We trace the slowest part of each page in Chrome DevTools before we change anything.

Read the full list

  • Oversized images

    Banner images uploaded at full camera size and sent to phones at that size.

  • Too many fonts

    Several font families and weights, loaded from Google Fonts before anything can render.

  • Leftover app code

    Snippets from apps uninstalled months ago, still loading on every page.

  • Heavy sliders

    Sliders that load every slide, including the ones nobody scrolls to.

  • CSS and JS everywhere

    Code for every section loaded on every page, whether that section is there or not.

  • Duplicate tracking

    Tracking scripts added twice, once by an app and once by hand.

How we work

Measure, fix, measure again.

Every change speeds up the page for the people using it, not just the score.

  1. Measure

    Home, collection and product pages on mobile and desktop, several runs each, median kept.

  2. Fix on a copy

    We work on a duplicate of your theme, so your live store is not affected.

  3. Measure again

    Same pages, same tests, same number of runs. You get before and after for each template.

  4. Publish and check

    Once you approve, we publish. Google's field data takes about 28 days to catch up, so we check it again then.

Kind words

Clients who trust us with their stores.

Long-term partners, not one-off projects. Here is what they say.

"Having collaborated with a talented developer on several projects for Aqara, I can confidently say he is one of the most reliable and thoughtful professionals I’ve encountered. His exceptional skills are matched by his clear and proactive communication. No matter the challenge, he approaches every project with patience and a solutions-oriented mindset."

Trung Duc Do Trung Duc DoFounder @ Aqara

“Collaborating with the developer on Vivirsinplagas was an absolute pleasure. He designed a seamless, bilingual website featuring stunning animations and demonstrated meticulous attention to every detail. His professionalism and reliability stood out throughout the project. I highly recommend his services to anyone seeking quality and dedication.”

Xavi Manaza Xavi ManazaFounder @ Vivirsinplagas

FAQ

Questions about speed work.

Something else? Write to contact@lviotech.com and we will help.

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Can you guarantee a PageSpeed score of 90 or more?

No one can honestly promise a score before measuring. Some apps you may need, like reviews or chat, always cost some speed. After the first round of tests we tell you what score is realistic for your store and what it would take to get there.

Do you use speed booster apps?

No. Some of them raise the score by hiding content or scripts from the test tool, and the store gets no faster for the people shopping on it. We fix the theme code instead.

Is the PageSpeed score the same as Core Web Vitals?

No. The score comes from a lab test on a simulated phone. Core Web Vitals come from real Chrome users visiting your store over the last 28 days. We work on both, and explain the difference in our guide to what a good Shopify speed score is.

Will you remove my apps?

Only with your approval. We show you how much load time each app adds, so you can decide whether it earns its place. Sometimes the same feature can be built into the theme with much less code.

Will speed work change how my store looks?

Usually not. Most fixes happen in code you never see. If a change would affect the design, like replacing a heavy slider, we show you the option first.

Contact

Let's build something great together.

Tell us about your store and what you want to improve. We will get back to you as soon as possible.

Tell us about your project

Answer a few quick questions and we come back with a plan.

  1. What you need
  2. Your store today
  3. Budget and timeline
  4. Your details
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