Baseline
We measure field data, templates, devices and journeys before changing code.
Shopify engineering studio · Barcelona
Projects across Spain, Europe and international operations
Improve
We combine field and laboratory data to find what delays loading, blocks interaction or shifts content. Work is prioritised by impact and risk, not by an isolated score.
Outcome
Faster and more stable critical templates with a clear before-and-after comparison.
Duration
Usually 3 to 8 weeks for a focused intervention.
Investment
Shopify Performance Fix from €2,500 to €4,000 plus VAT.
Direct answer
We review app scripts, theme JavaScript, Liquid, images, fonts and third parties. We implement improvements that can be validated without breaking functionality or measurement.
When intervention makes sense
LCP, INP or CLS is poor on commercial templates.
Apps load scripts on pages where they are not used.
Navigation or add to cart responds slowly.
Lighthouse improvements do not match the real user experience.
What we do
We measure field data, templates, devices and journeys before changing code.
We attribute weight and execution time to apps, scripts, Liquid, images, fonts and external services.
We address blocking work and unnecessary loading, starting with the strongest impact-to-risk ratio.
We compare laboratory and field data, test functionality and document possible regressions.
How it is verified
Limits
Core Web Vitals also depend on device, network, apps and third parties. We do not promise one universal score without reviewing those dependencies.
Related services
A prioritised improvement backlog based on evidence, expected impact and implementation cost.
An indexable and measurable architecture with less duplication and stronger control over the URLs that compete.
A maintainable storefront that is easier to publish and carries less technical debt between campaigns.
Next step
We will review the context, systems and outcome you need. You will receive a concrete recommendation on scope and priorities.