Shopify Website Speed Optimisation

Q: Why is my Shopify store slow?

Common causes include unoptimised images, too many third-party apps, bloated theme code, undeferred JavaScript, and no CDN caching strategy. We audit all of these and fix the highest-impact issues first.

Q: What is a good Shopify PageSpeed score?

A score of 80+ on mobile and 90+ on desktop is considered good. Most unoptimised Shopify stores score 20-50 on mobile. Our clients typically reach 85-95 after a full speed optimisation engagement.

Q: How does page speed affect Shopify sales?

Google's data shows every 1-second delay in mobile load time reduces conversions by up to 20%. A store loading in under 2 seconds converts significantly better than one loading in 5+ seconds.

Q: Will speed optimisation affect my store's design?

No. Our speed optimisation work is entirely technical — we optimise code, images, scripts, and caching without touching your store's visual design or content.

Q: How long does Shopify speed optimisation take?

A full speed optimisation engagement typically takes 1-2 weeks. Quick wins like image compression and script deferral can be done in 2-3 days and show immediate PageSpeed improvements.

Website Speed Optimisation

Your Shopify Store Is Losing Sales Every Second It’s Slow

Every 1-second delay costs you up to 20% in conversions. We fix Shopify store speed at the code level — Core Web Vitals, LCP, image optimisation, and sub-2s load times.

Get a Free Speed Audit Our Speed Services

<2s

Average Load Time After Optimisation

90+

PageSpeed Score on Mobile

+27%

Average CVR Lift from Speed Alone

50+

Shopify Stores Optimised

Specialists in

Shopify Partner

Core Web Vitals

LCP Optimisation

90+ PageSpeed

4.9★ Rated

The Problem

A Slow Store Doesn’t Just Frustrate Visitors — It Costs You Revenue

Google penalises slow stores in rankings. Customers abandon slow stores before checkout. Every second of load time is money walking out the door.

📈

-20% Conversions Per Second of Delay

Google’s data is clear: a 1-second delay in mobile load time reduces conversion rates by up to 20%.

🔍

Google Ranks Fast Sites Higher

Core Web Vitals are an official Google ranking factor. Slow stores lose organic visibility to faster competitors.

📱

53% of Mobile Users Leave After 3s

More than half of your mobile visitors will abandon your store if it takes longer than 3 seconds to load.

🚀

Faster Stores Win on Every Ad Platform

Google Ads, Meta, and Shopify all reward fast landing pages with lower CPCs and higher Quality Scores.

PageSpeed Score — Typical Shopify Store

Mobile

Before

Desktop

Before

⎯⎯⎯ After Cognito Speed Optimisation ⎯⎯⎯

Mobile

After

Desktop

After

<2.0s

LCP

<100ms

FID / INP

<0.1

CLS

What We Fix

Our Shopify Speed Optimisation Services

We go beyond PageSpeed scores — every fix is tied to a real-world performance gain that impacts rankings and revenue.

🔍

Speed Audit & Report

A full technical speed audit identifying every bottleneck, with a prioritised fix roadmap.

PageSpeed & GTmetrix analysis
Core Web Vitals breakdown
Waterfall load analysis
Prioritised fix roadmap

🖼

Image & Media Optimisation

Images are the #1 cause of slow Shopify stores. We compress, convert, and lazy-load everything.

WebP & AVIF conversion
Lazy loading implementation
Responsive image sizing
LCP image preloading

💻

JavaScript & CSS Optimisation

Bloated scripts and unused CSS silently slow your store. We audit, minify, and defer everything.

JS deferral & async loading
Unused CSS removal
Critical CSS inlining
Third-party script audit

✅

Core Web Vitals Fix

LCP, INP, and CLS fixes that move your store from “needs improvement” to “good” on every metric.

LCP element optimisation
Layout shift elimination
Interaction delay reduction
Google Search Console fixes

🌎

CDN & Caching Strategy

Serve your store from the edge — globally fast, always cached, zero-downtime delivery.

CDN configuration & setup
Browser caching rules
Shopify asset caching
Global delivery optimisation

🛍

App & Theme Audit

Every Shopify app adds load time. We identify bloated apps and theme code that can be removed or replaced.

App performance impact audit
Liquid code optimisation
Render-blocking fixes
Theme section cleanup

Google’s Ranking Signals

We Fix All Three Core Web Vitals

Google uses Core Web Vitals as a direct ranking factor. Failing any one of them costs you organic traffic — and revenue.

LCP

Largest Contentful Paint

How fast your biggest visible element loads. Slow LCP = visitors see a blank page = they leave. We fix hero images, fonts, and above-fold rendering.

TargetUnder 2.5s ✓

INP

Interactivity

Interaction to Next Paint

How fast your store responds to clicks, taps, and inputs. Laggy add-to-cart buttons and slow filters kill conversions. We optimise JS execution and event handlers.

TargetUnder 200ms ✓

CLS

Visual Stability

Cumulative Layout Shift

How much your page jumps around as it loads. Buttons that shift before a customer clicks them lose sales. We add proper dimensions to all images and embeds.

TargetUnder 0.1 ✓

How We Work

Our 4-Step Speed Optimisation Process

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Full Speed Audit

We run your store through PageSpeed, GTmetrix, and WebPageTest to find every bottleneck.

📋

Fix Prioritisation

We rank fixes by impact-to-effort ratio. Biggest wins first, always.

⚡

Implementation

Our Shopify devs implement all fixes directly in your theme — tested on staging before going live.

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Verify & Report

We re-run all speed tests, confirm score improvements, and deliver a full before/after report.

Our Toolkit

Tools We Use to Diagnose & Fix Speed

Industry-standard tools for the most accurate performance benchmarks.

📈

PageSpeed Insights

⚡

GTmetrix

🌐

WebPageTest

🔍

Lighthouse

🖼

Squoosh

💻

Chrome DevTools

🛍

Shopify Analytics

🏆

CrUX Dashboard

90+

Mobile PageSpeed Score

<2s

Average Load Time

+27%

Avg CVR Lift

50+

Stores Optimised

“Our mobile PageSpeed went from 28 to 93 in one week. Checkout completions jumped 34% the following month — same traffic, same ads.”

— D2C Fashion Brand, Delhi

Why Cognito IT

We Don’t Just Improve Scores — We Improve Revenue

🛍

Shopify-Specific Expertise

Generic speed agencies don’t know Shopify’s Liquid constraints. We do — and we work within the platform, not around it.

📱

Mobile-First Approach

We optimise for mobile first because that’s where 70% of your traffic comes from and where most stores fail.

📈

Revenue-Linked Reporting

We don’t just report PageSpeed scores. We track CVR, bounce rate, and revenue impact before and after.

🛡

Zero Design Impact

Your store looks identical after our work. Speed optimisation is entirely behind the scenes — invisible to visitors, felt in their wallet.

FAQ

Common Questions About Shopify Speed

Have more questions? Talk to our team →

Common causes include unoptimised images, too many third-party apps, bloated theme code, undeferred JavaScript, and no CDN caching strategy. We audit all of these and fix the highest-impact issues first.

A score of 80+ on mobile and 90+ on desktop is considered good. Most unoptimised Shopify stores score 20–50 on mobile. Our clients typically reach 85–95 after a full speed optimisation engagement.

Google’s data shows every 1-second delay in mobile load time reduces conversions by up to 20%. A store loading in under 2 seconds converts significantly better than one loading in 5+ seconds.

No. Our speed work is entirely technical — we optimise code, images, scripts, and caching without touching your store’s visual design or content.

A full speed optimisation engagement typically takes 1–2 weeks. Quick wins like image compression and script deferral can be done in 2–3 days and show immediate PageSpeed improvements.

Free Speed Audit

Find Out What’s Slowing Your Store — and How Much It’s Costing You

Book a free 30-minute speed audit call. We’ll run your store through our full diagnostic, show you the exact issues, and give you a prioritised fix list — no obligation.

Book Free Speed Audit Email Us Directly

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