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Shopify Speed
Optimisation

We find what slows Dutch and Benelux Shopify stores down, from apps and images to Liquid and scripts, and fix it in order of impact. Kampeerwinkel Roermond, a store we built with 9,400+ products, passes Core Web Vitals on desktop (Chrome UX Report, 28 days to 8 Oct 2026).

Rehall.com Shopify store built by AvixDigital, on a laptop and a phone

€450Growth audit, credited

What we fix

Shopify speed services

A slow Shopify store is rarely slow for one reason. It is usually a pile-up: apps that each add scripts, oversized images, Liquid sections that render too much, web fonts and tracking tags. Shopify speed optimisation means measuring which of these hurts your real visitors, then fixing them in order of impact rather than chasing a lab score.

See the real-user numbers in our Kampeerwinkel Roermond Shopify case study and how we fitted nine apps into Rehall's custom Shopify theme. Choosing a theme? Read custom Liquid vs premium Shopify themes.

A Core Web Vitals audit for your store

We start with field data from the Chrome UX Report and Search Console, then run lab tests on your key templates: home, collection, product and cart. You get a list of fixes ranked by their effect on LCP, INP and CLS, with the effort for each.

  • Chrome UX Report and Search Console data
  • Lighthouse tests per template
  • App and script inventory
  • Fixes ranked by impact and effort
Analytics dashboard on a laptop screen

App bloat and third-party scripts

Every app can add JavaScript to every page, and removed apps often leave code behind. We list what each app loads, remove leftovers, delay chat, review and tracking scripts until they are needed and move small app features into theme code where that makes sense. Rehall's custom theme runs nine apps, including Klaviyo, Gorgias and Judge.me.

  • App audit and leftover code removal
  • Delayed chat, review and tracking scripts
  • App features rebuilt in theme code
  • Google Tag Manager clean-up
Rehall men's ski jackets with filters for size, colour, waterproofness and breathability

Liquid, images and fonts

Heavy themes do too much work per page. We refactor Liquid sections that loop over large collections, serve WebP or AVIF images at the right size, preload the main image and trim fonts to the weights you use. Kampeerwinkel Roermond serves 9,400+ products from one set of templates, with real-user LCP of 2.2 s on mobile and 2.4 s on desktop (Chrome UX Report, 28 days to 8 Oct 2026).

  • Liquid section refactors
  • WebP and AVIF images at the right size
  • Preloaded main image, lazy-loaded rest
  • Fewer font files and weights
Laptop showing custom Shopify theme code beside a live product page

Who it's for

Three numbers Google measures

Who it's for: Dutch and Benelux Shopify brands with roughly €0.5M–€10M in revenue whose store feels slow on mobile, fails Core Web Vitals in Search Console or has collected apps over the years. Not a fit if you want a perfect Lighthouse score for a screenshot; we work on what real visitors experience.

Speed projects start with the €450 Website Growth Audit, credited in full to the work if you go ahead; your fixed quote for the fixes follows it. A full theme rebuild follows our webshop pricing, from €2,500 excl. VAT. See our pricing.

  • LCP under 2.5 s

    Largest Contentful Paint: how fast the main image or heading appears. Kampeerwinkel Roermond's real-user LCP is 2.2 s on mobile and 2.4 s on desktop (Chrome UX Report, 28 days to 8 Oct 2026).

  • INP under 200 ms

    Interaction to Next Paint: how fast the page responds to a tap or click. Heavy JavaScript from apps and tracking tags is a common cause when it fails.

  • CLS under 0.1

    Cumulative Layout Shift: how much the page jumps while it loads. Kampeerwinkel Roermond measures 0.03 in the same data. Set image sizes and reserved space for banners prevent jumps.

How we work

How we speed up
your store

  1. 01

    Audit

    Week 1: we start with the Website Growth Audit: field data, lab tests on your key templates and an inventory of every app and script.

  2. 02

    Fixed-price plan

    Week 2: you get a fixed scope and price for the fixes, ranked by impact, with the audit fee credited in full. Nothing changes on your live store yet.

  3. 03

    Fixes with weekly demos

    From week 3: we work on a duplicate theme, demo progress every week and compare lab tests before and after on each template.

  4. 04

    Publish & measure

    After publishing: we check Chrome UX Report and Search Console again once a full 28-day window has passed. You own all the theme code.

/ Before you start

Shopify speed questions, answered

Straight answers about Shopify speed: what we measure, what we fix, how long it takes and what it costs.

How much does Shopify speed optimization cost?

Speed work starts with the €450 Website Growth Audit, credited in full to the work if you go ahead. The audit shows what to fix; the fixes are then quoted at a fixed price. If the theme needs a full rebuild, that follows our webshop pricing, from €2,500 excl. VAT. See our pricing page.

Which Core Web Vitals targets do you aim for?

Google's thresholds for a good experience, measured at the 75th percentile of real visits: Largest Contentful Paint under 2.5 seconds, Interaction to Next Paint under 200 milliseconds and Cumulative Layout Shift under 0.1. We work from Chrome UX Report and Search Console field data, because that is what Google uses, and use Lighthouse lab tests to find the causes.

Do you guarantee a PageSpeed score?

No. Lab scores move between test runs, and a store's speed also depends on its apps, images and the content your team adds. We commit to a fixed scope of fixes and show before-and-after measurements, not a number we cannot control. For reference, real-user data for Kampeerwinkel Roermond, a Shopify store we built, shows LCP 2.2 s on mobile and 2.4 s on desktop with CLS 0.03, and desktop passes Core Web Vitals (Chrome UX Report, 28 days to 8 Oct 2026).

How long does speed work take?

The audit takes the first week and the fixed-price plan follows in the second. The time for the fixes depends on what the audit finds and is written into the quote. If the store needs a new theme, a typical build goes live in 6–8 weeks.

Will removing apps break our store?

Not if it is done in order. We list what every app loads, check which features you still use and test removals on a duplicate theme first. Some app features are better rebuilt in theme code; others stay because they earn their place. Nothing changes on your live store until you approve it in a weekly demo.

Do we need a new theme to get a fast store?

Not always. Fixing images, apps and scripts in the current theme often goes a long way. A refactor or a new custom Liquid theme makes sense when the theme code itself is the bottleneck. Our article on custom Liquid vs premium Shopify themes covers the trade-offs.

Can you speed up a store with thousands of products?

Yes. Large catalogues mostly stress collection pages, filters and search. Kampeerwinkel Roermond runs 9,400+ products in 14 departments on one set of templates, and Rehall uses technical spec filters and predictive search, so we know where catalogue size starts to hurt. See our guide to Shopify product filters and search.

Who owns the code, and how do we work together?

You own all the theme code we write. Our engineer-led team works from Bangladesh, a few hours ahead of CET, so part of our working day overlaps with Dutch business hours for calls and the weekly demo, with written updates in between. Calls are in English.

Want to know what slows your store?

Book a free 30-minute site review. We look at your store's real-user data and tell you whether an audit is worth it.

Book a free site review

Free 30-minute video call · No obligation

  • Shopify speed optimisation
  • Core Web Vitals
  • LCP, INP and CLS
  • App clean-up
  • Third-party scripts
  • WebP and AVIF images
  • Liquid refactors
  • Font loading
  • Theme audits

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