A rebuilt Online Store 2.0 theme, a stripped-back app stack and multi-currency checkout. Mobile Lighthouse went from 42 to 98 and LCP from 3.8s to 1.4s โ on a fixed scope and a fixed price.
Healthonik sells supplements and wellness products into the UK and the EU. The catalogue was fine and the traffic was there, but the storefront was collapsing under its own weight: a heavily modified premium theme, twelve apps injecting scripts into every page, and a product template that took almost four seconds to paint on a mid-range Android.
Their internal read was that they needed more traffic. The data said otherwise โ mobile sessions were converting at less than half the desktop rate, and the drop-off was concentrated in the first eight seconds of the session. They were paying for visitors who left before the page finished loading.
A second problem sat underneath it. The brand wanted to price in EUR for EU customers, but the theme had hard-coded GBP formatting in six places, so multi-currency could not be switched on without breaking the product pages.
Mobile Lighthouse moved from 42 to 98 and field LCP from 3.8s to 1.4s. Mobile conversion rate rose 31% in the first full quarter on a comparable traffic mix. The app subscription bill dropped by roughly ยฃ180 a month, which pays for a meaningful part of the ongoing retainer. The marketing team now ships campaign pages themselves.
I expected a headless migration to take months. It was done in six weeks and mobile performance tripled. The part I did not expect: we stopped needing a developer for everyday page changes.
| Platform | Shopify, Online Store 2.0, Shopify Markets |
| Theme | Custom build, Liquid, sections and blocks, metafields and metaobjects |
| Integrations | Klaviyo, subscription app, GBP/EUR multi-currency, GA4 and Meta CAPI |
| Delivery | Six weeks, fixed scope, fixed price, private GitHub repo with preview deploys |
We start with a free technical audit: what is slowing the store down, what it is costing you, and what the fix is worth. Written, in one working day.