Case study: I rebuilt an activewear brand's entire storefront in 8 weeks — here's whatCase study: I rebuilt an activewear brand's entire storefront in 8 weeks — here's what
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Case study: I rebuilt an activewear brand's entire storefront in 8 weeks — here's what happened to their revenue.
The client had a big problem. $4M/year in sales, but 71% of shoppers were abandoning their cart. Their Shopify theme loaded in 4.6 seconds. Every flash sale crashed the server.
Here's what I built and what changed:
→ Migrated from a legacy Liquid theme to a fully headless Next.js storefront → Implemented ISR so product pages load in under 400ms — even during traffic spikes → Built an optimistic slide-out cart that skips the 1.5s Shopify API delay entirely → Set up a Facebook CAPI proxy to recover conversion tracking lost to ad blockers → Gave the marketing team a Sanity CMS visual builder so they never need a dev again
Results after 60 days:
Page load: 4.6s → 0.8s (82% faster)
Conversion rate: +34.6%
Cart abandonment: down 18.3%
Revenue directly attributed: +$142,000
Stack: React 19, Next.js App Router, Sanity.io, Shopify GraphQL, Vercel Edge, Upstash Redis, Facebook CAPI, Cloudflare
If your store is bleeding revenue due to slow load times or a rigid theme — let's talk.
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