Shopify speed optimisation
Shopify speed work starts at $540 (12 hours at $45) and usually takes 1 to 2 weeks, measured with Lighthouse before and after.
I find what slows your Shopify store and fix it: leftover app code, render-blocking scripts, oversized images and heavy Liquid, measured with Lighthouse and Core Web Vitals before and after. It's for stores whose mobile pages load slowly or fail Core Web Vitals. Speed work starts at $540 (12 hours at $45) and usually takes 1 to 2 weeks.
Who it's for
- Stores with low mobile Lighthouse scores or failing Core Web Vitals in Search Console
- Stores that have installed and removed a lot of apps over the years
- Brands about to spend on ads that want their landing pages fast first
What you get
- Baseline Lighthouse runs on mobile and desktop for the home, collection, product and cart pages
- Code left behind by uninstalled apps removed, and non-critical scripts deferred
- Images served with image_url, srcset and sizes, lazy loading below the fold and the main image loaded first
- Render-blocking CSS and font loading fixed
- Heavy Liquid loops and unused sections cleaned up
- A before and after report with the scores and every change I made
How it works
- 01 Baseline measurements on four page types
- 02 A ranked list of fixes with hour estimates, and you approve which ones I do
- 03 Fixes on a duplicate theme, tested and re-measured
- 04 Publish, then re-test the live store
1 to 2 weeks for most stores, which is 12 to 30 hours of work.
When you don't need me
If your store already scores well and still doesn't sell, speed isn't the bottleneck; look at your product pages and offer first. And if a slow third-party app is essential to your business, I can reduce what it costs in load time but I can't remove it. I'll tell you the realistic ceiling after the baseline.
Proof
From past work
- Bestseller
Lighthouse 98 for performance on the flagship with 47,000+ reviews on the product page; all five stores held at 90+.
- New
Mobile Lighthouse performance on this site's previous version went from 43 to 94 after five changes, with 0 layout shift.
- Top rated
Conversion features coded into the theme itself, with every storefront kept at Lighthouse 90+.
FAQ
Questions
Not before I've measured your store. Third-party apps, tracking scripts and the theme set the ceiling. After the baseline I'll tell you the score range I expect and which apps are holding it back.
Lighthouse is a lab test of one page load on a simulated phone. Core Web Vitals (LCP, INP and CLS) come from real Chrome users visiting your store, and they're the numbers Google uses in search. I report both.
I make every change on a duplicate theme and test it there, then publish once you've checked it. If an app stops working after a change, I roll that change back.
No. Speed work starts with its own baseline. Book the $450 audit if you also want accessibility checked and a written report you can share.
Journal
Read more on this
· 7 min read
Why is my Shopify store slow? The fixes that actually move Core Web Vitals
What slows Shopify stores down, from app scripts to a late hero image, and the fixes that move LCP, INP and CLS, plus the ones that don't.
- Speed
- Core Web Vitals
- Apps
· 6 min read
What is a good Lighthouse score for a Shopify store, and how to reach 90+ on mobile
Lighthouse calls 90 to 100 good. What a Shopify store's mobile score measures, why it jumps between runs, and the changes that get it past 90.
- Speed
- Lighthouse
Other services
- Custom Shopify theme developmentFrom $2,700
- Shopify Plus developmentFrom $675
- Headless Shopify with Hydrogen or Next.jsFrom $7,200
- Migration to ShopifyFrom $1,350
- Shopify store audit (speed and accessibility)$450 fixed
- Ongoing Shopify supportFrom $225 a month
- White-label Shopify development for agencies$45 an hour
Next step
Get a fixed quote
Send me your store URL, what you want done and your deadline. I'll reply within 24 hours with questions or a quote in hours at $45.



