What's included
- Scoped performance audit with a prioritized fix list
- Core Web Vitals fixes (LCP, INP and CLS)
- Responsive CSS and JavaScript cleanup
- Accessibility fixes that also help speed and SEO
- Multi-region storefront improvements
- Monitoring and iteration after launch
+197%
Peak UK sales uplift for Saicho Drinks through scoped performance improvements across multiple regions, delivered with an agency partner.
Visit saichodrinks.com ↗Why Shopify stores get slow
Shopify's hosting and CDN are fast. Stores get slow because of what gets added on top: a theme full of unused features, apps that each inject their own JavaScript, oversized images, third-party tags and web fonts that block rendering. Speed work is mostly subtraction.
What I measure
I look at Core Web Vitals: Largest Contentful Paint (how quickly the main content appears), Interaction to Next Paint (how responsive the page feels) and Cumulative Layout Shift (how much things jump around). Real-visitor data comes first and lab tests second, because Google evaluates what real users experience and your customers feel the same thing.
The approach
Where the seconds go.
Audit and baseline
Real-user data and lab tests across your key templates (home, collection, product and cart) so we fix what actually hurts, in order of impact.
Theme and asset cleanup
Trim unused CSS and JavaScript, load images responsively, defer what isn't needed for first paint and fix layout shifts.
Apps and third parties
Review every installed app and tag: what it costs in load time, what it earns, and what can go or be replaced with a few lines of Liquid.
FAQs
Speed questions.
01Does site speed affect SEO?
Yes. Core Web Vitals are a ranking signal, and slow pages also lose shoppers before they ever buy. Speed is rarely the only reason a page ranks, but it's a reliable tie-breaker and a direct conversion lever.
02Will removing apps break my store?
Not if it is done properly. I review what each app actually does, test removals in a development theme first and replace functionality with lightweight code where it is worth it.
03Can you make my store fast without a redesign?
Often, yes. Several of the best results I have been part of, delivered with agency partners, came from scoped performance work on existing themes rather than full rebuilds.
04What speed score should I aim for?
Aim for passing real-user Core Web Vitals on your key templates, not a perfect lab score. A 100 in a test tool means little if real visitors still wait.
Keep exploring
Related services.
Related service
Shopify SEO
Technical SEO, structured data and catalog optimization for Shopify stores.
Related service
Shopify CRO
Checkout refinement, upsells and measured A/B testing.
Related service
Shopify Theme Development
Custom Liquid themes on schema-driven architecture that your team can edit and extend.
Slow store, lost sales?
Send me the URL. I'll tell you what's costing you the most, and what to fix first.