What Core Web Vitals improvement should I expect?

Stores starting in the red typically reach green. Stores in the amber band usually see LCP improvements of 30 to 50 percent. We share the realistic target after the baseline is captured.

Will you tell me which apps to remove?

We surface the perf cost of every app. You decide what to remove based on business value. Marketing and ops sign-off before any removal.

Image optimisation, what changes exactly?

Format migration to AVIF / WebP, lazy-loading on below-fold images, proper srcset for responsive images, and removing the manual asset uploads that bypass Shopify CDN.

What about the Shopify CDN?

Shopify CDN is fast but theme code can defeat it. We audit the cases where developers have bypassed the CDN with hardcoded asset URLs or external image hosts.

Is the improvement permanent?

Yes until your team adds something that regresses it. The re-runnable test config lets your team catch regressions before they ship. Most stores book a quarterly re-baseline as a small retainer.

Shopify Services

Shopify Speed Optimization

Shopify speed optimisation. LCP, INP, CLS, theme bundle size, app audit, image optimisation. Core Web Vitals green.

Timeline: 2 to 4 weeks
Headline: Core Web Vitals
Measurement: Pre + post baseline
Handover: Re-runnable tests

Overview

What it is.

Speed optimisation for Shopify stores. Theme bundle audit, app perf-cost analysis, image optimisation, render-path improvements. Output is verified Core Web Vitals improvement on the top-five surfaces measured against a baseline we capture before any work starts. Most engagements run 2 to 4 weeks from baseline to verified improvement. Themes with extensive app stacks may extend to 6 weeks.

What you get

Deliverables.

Pre-engagement baseline (Lighthouse + WPT + CrUX)
Theme bundle size analysis with extraction plan
App perf-cost audit (which app costs how much)
Image optimisation (format, lazy-load, sizing)
Render-blocking JS and CSS extraction
Liquid render-loop optimisation
Post-engagement baseline with delta report
Re-runnable test config handed to your team

Honest limits

What it isn't.

Theme architecture changes beyond standard optimisation are quoted separately
Apps we recommend removing need your marketing and ops sign-off
Shopify-platform performance changes are outside our control

Not sure if it's a fit? Email us. We'll tell you straight.

How it works

From inquiry to handover.

01
1. Baseline
Measurements on top-five surfaces. Tests captured for re-run later.
02
2. Roadmap
Optimisation list ordered by impact and effort.
03
3. Build
Optimisations shipped with daily PR reviews.
04
4. Re-baseline
Same methodology. Delta report shared.

Frequently asked

Questions we get from people about to book.

What Core Web Vitals improvement should I expect?: Stores starting in the red typically reach green. Stores in the amber band usually see LCP improvements of 30 to 50 percent. We share the realistic target after the baseline is captured.
Will you tell me which apps to remove?: We surface the perf cost of every app. You decide what to remove based on business value. Marketing and ops sign-off before any removal.
Image optimisation, what changes exactly?: Format migration to AVIF / WebP, lazy-loading on below-fold images, proper srcset for responsive images, and removing the manual asset uploads that bypass Shopify CDN.
What about the Shopify CDN?: Shopify CDN is fast but theme code can defeat it. We audit the cases where developers have bypassed the CDN with hardcoded asset URLs or external image hosts.
Is the improvement permanent?: Yes until your team adds something that regresses it. The re-runnable test config lets your team catch regressions before they ship. Most stores book a quarterly re-baseline as a small retainer.

Ready to start?

Tell us about your project.

A member of our team reads every message. Replies within one business day. No sales call required.

See all services

Shopify Services

Shopify Speed Optimization

Shopify speed optimisation. LCP, INP, CLS, theme bundle size, app audit, image optimisation. Core Web Vitals green.

Timeline: 2 to 4 weeks
Headline: Core Web Vitals
Measurement: Pre + post baseline
Handover: Re-runnable tests

Overview

What it is.

What you get

Deliverables.

Pre-engagement baseline (Lighthouse + WPT + CrUX)
Theme bundle size analysis with extraction plan
App perf-cost audit (which app costs how much)
Image optimisation (format, lazy-load, sizing)
Render-blocking JS and CSS extraction
Liquid render-loop optimisation
Post-engagement baseline with delta report
Re-runnable test config handed to your team

Honest limits

What it isn't.

Theme architecture changes beyond standard optimisation are quoted separately
Apps we recommend removing need your marketing and ops sign-off
Shopify-platform performance changes are outside our control

Not sure if it's a fit? Email us. We'll tell you straight.

How it works

From inquiry to handover.

01
1. Baseline
Measurements on top-five surfaces. Tests captured for re-run later.
02
2. Roadmap
Optimisation list ordered by impact and effort.
03
3. Build
Optimisations shipped with daily PR reviews.
04
4. Re-baseline
Same methodology. Delta report shared.

Frequently asked

Questions we get from people about to book.

What Core Web Vitals improvement should I expect?: Stores starting in the red typically reach green. Stores in the amber band usually see LCP improvements of 30 to 50 percent. We share the realistic target after the baseline is captured.
Will you tell me which apps to remove?: We surface the perf cost of every app. You decide what to remove based on business value. Marketing and ops sign-off before any removal.
Image optimisation, what changes exactly?: Format migration to AVIF / WebP, lazy-loading on below-fold images, proper srcset for responsive images, and removing the manual asset uploads that bypass Shopify CDN.
What about the Shopify CDN?: Shopify CDN is fast but theme code can defeat it. We audit the cases where developers have bypassed the CDN with hardcoded asset URLs or external image hosts.
Is the improvement permanent?: Yes until your team adds something that regresses it. The re-runnable test config lets your team catch regressions before they ship. Most stores book a quarterly re-baseline as a small retainer.

Ready to start?

Tell us about your project.

A member of our team reads every message. Replies within one business day. No sales call required.

See all services

Shopify Speed Optimization

What it is.

Deliverables.

What it isn't.

From inquiry to handover.

1. Baseline

2. Roadmap

3. Build

4. Re-baseline

Questions we get from people about to book.

Tell us about your project.

Shopify Speed Optimization

What it is.

Deliverables.

What it isn't.

From inquiry to handover.

1. Baseline

2. Roadmap

3. Build

4. Re-baseline

Questions we get from people about to book.

Tell us about your project.