Shopify speed optimisation
Developer-led fixes for slow Shopify stores: Core Web Vitals, theme code, images and apps — measured on real visitors, not just a lab score.
Quick answer
Speeding up a Shopify store means finding what actually slows real visitors down — usually unused app scripts, oversized images, render-blocking code and heavy theme sections — and fixing it at the source. The target is Google's Core Web Vitals: Largest Contentful Paint (loading), Interaction to Next Paint (responsiveness) and Cumulative Layout Shift (stability), measured on real visitors in Search Console.
What we fix
Real code changes by Shopify developers — not a speed app that hides the problem behind lazy-loading.
Get a fixed quoteLCP, INP and CLS fixed template by template until your product and collection pages pass on mobile.
Every app and third-party script measured, leftovers from uninstalled apps removed, and the heavy ones loaded later or replaced.
Responsive images, modern formats, correct sizes and lazy-loading below the fold, without losing quality.
Liquid, CSS and JavaScript cleaned up: render-blocking assets removed, unused code dropped and critical styles prioritised.
Mobile-first fixes for the phones most of your visitors use, tested on real mid-range devices and networks.
Fonts subset and preloaded, icons inlined and assets ordered so the first screen paints fast.
A clear report of every issue, its impact and its fix, prioritised so the biggest wins come first.
Monthly Core Web Vitals checks, so new apps and campaigns never quietly slow the store down again.
Options
Every engagement is a fixed price agreed after we have measured your store.
Know first
A detailed audit and prioritised fix list your team or ours can work through.
Most chosen
We audit, fix and verify — the complete job, measured before and after.
Keep it fast
Monthly monitoring and fixes, so new apps and features never slow the store down.
In every speed project
How it works
Measure, fix, verify — every change is made on a copy of your theme and only published once it is proven faster.
Free 30-minute call
Your real-user data and key templates reviewed to see where speed is actually lost.
Fixed quote in 48 hours
Every issue listed with its impact, and a fixed price for the fixes that matter.
On a theme copy
Code, images, fonts and apps fixed on a duplicate theme, tested on real phones.
Before & after report
Published, then measured again on real visitors as Google's data updates.
Selected work
Straight answers
The things brands actually ask us before a build — answered properly, including the times the answer is that you do not need us.
The most common causes are too many apps loading scripts on every page, scripts left behind by apps you have uninstalled, oversized images and videos, heavy theme sections and render-blocking fonts or code. An audit shows which of these matter most on your store.
Some help a little, but most improve a lab score by delaying scripts rather than removing what slows the store down — and some break features. Lasting speed comes from fixing the theme, apps and images themselves.
Yes. Core Web Vitals are part of Google's page experience signals, and faster pages keep more visitors on the site and moving towards checkout, especially on mobile.
An audit takes a few days. Fixes usually take one to three weeks depending on the theme and apps. Google's real-user data then needs about four weeks to fully reflect the improvement.
No. All work happens on a copy of your theme, every feature and tracking pixel is tested before publishing, and the previous theme stays available to switch back instantly.
We do not promise a lab score, because it is not what Google ranks or customers feel. We focus on passing Core Web Vitals for real visitors, which is the measure that counts.
Still weighing it up?Tell us the situation
Guides
Practical answers to the questions we hear most, from the team that builds these stores.
All insights
A slow Shopify store costs sales and rankings. This practical guide shows how to measure speed properly, then fix what usually slows Shopify down — apps, images, fonts, scripts and theme code — so you pass Core Web Vitals.
Shopify gets the basics of SEO right, but most stores still leave rankings on the table. This checklist covers the 20 fixes we run on every Shopify SEO audit — technical, on-page, structured data, content and AI search.
The product page is where shoppers decide. This guide covers every element of a high-converting Shopify product page — images, copy, price, variants, reviews, delivery information and SEO — with a checklist you can work through today.
Start a project
Tell us where you are — a new build, a migration or a project that has stopped moving. You get a fixed scope and a plan in writing, not a sales call.
