Website Prism Service

Shopify Speed & Core Web Vitals Optimization

A named add-on service for existing Shopify stores: image optimization, app-script audits, and theme cleanup to fix real Core Web Vitals scores.

Shopify Partner Fiverr Top Rated Registered UK Company
32+
Projects Delivered
20
Core Services
6
Countries Served
100%
Real Client Work

Fix the Speed Problem Killing Your Conversion Rate

A slow Shopify store loses sales before a visitor ever sees your products — and Google's Core Web Vitals scores are a real ranking factor, not just a vanity metric. This service is a focused, named add-on for stores that already exist and need real speed fixes, separate from a full custom Shopify build.

What's Included

Everything you need, nothing you don't.

01

A full Core Web Vitals audit (LCP, INP, CLS) against your actual live store, not a generic checklist

02

Image optimization and lazy-loading fixes — usually the single biggest speed win on Shopify stores

03

App and third-party script audit — identifying which installed apps are silently slowing every page load

04

Theme code cleanup (unused CSS/JS, render-blocking resources)

05

Before/after PageSpeed Insights scores so you can see the real, measured improvement

06

A written report of any remaining risks (e.g. an app you should reconsider keeping installed)

How We Work

Our Process

We start by running a real Core Web Vitals audit against your live store using Google PageSpeed Insights, then work through the highest-impact fixes first — usually images and third-party app scripts — before touching theme code, and finish with a before/after report showing the measured improvement.

Under the Hood

Technologies We Work With

Google PageSpeed Insights and Lighthouse for measurement, Shopify Liquid and theme code for fixes, image compression/lazy-loading tooling, and browser DevTools network analysis for identifying slow third-party scripts.

Shopify Speed & Core Web Vitals Optimization Pricing

Straightforward starting prices — every project gets scoped to your exact needs on a free call.

Basic

$100

starting at

  • Full Core Web Vitals audit + written report
  • Image optimization pass
  • Before/after PageSpeed score
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Most Popular

Standard

$300

starting at

  • Everything in Basic
  • Third-party app script audit and fixes
  • Theme code cleanup (unused CSS/JS)
  • Lazy-loading implementation
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Premium

$700

starting at

  • Everything in Standard
  • Full theme-level performance rebuild of slow sections
  • App replacement recommendations
  • 30-day post-fix monitoring
Get Started

Custom

Let's Talk

as per requirement

  • Multi-service or multi-brand programs
  • Scoped after a discovery call
  • Flexible timeline and payment milestones
  • Dedicated project lead
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Frequently Asked Questions

Is this different from your regular Shopify Development service?

Yes — this is a focused optimization engagement for a store that already exists, not a new build. If your store also needs new features or a redesign, that's better scoped under Shopify Development directly.

How do you measure the improvement?

We run Google PageSpeed Insights before and after the work and give you both reports, so the improvement is a real measured number, not a claim.

Can slow apps really be the problem, not just my theme?

Yes — this is extremely common on Shopify. Apps inject their own scripts into every page load, and it's often an app rather than the theme itself causing the biggest slowdown. Our audit specifically checks for this.

Will this affect my store's design?

No — the goal is speed, not visual changes. Any change that could visibly affect the design is flagged with you before we make it.

Ready to start your shopify speed & core web vitals optimization project?

Free consultation, no pressure — just a clear plan for what it'll take.

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