01Product and collection pages feel heavy
Find theme, app and media bottlenecks first.
Audit before gutting design for synthetic scores.
Discuss this situationSpeed engineering
We diagnose theme, app, media and rendering issues before choosing changes. Lab Lighthouse scores are useful diagnostics — they are not Core Web Vitals field claims or revenue promises.
01Starting points
Performance starting points
When the storefront feels slow
Use this service when speed and front-end delivery are the primary engagement — not a full redesign or migration.
02Mobile shopping suffers most
Mobile paths reviewed with performance work.
Speed gains should support shopping clarity, not only lab metrics.
Discuss this situation03Performance regresses after every app install
Maintainable front-end structure.
Reduce fragile debt so future changes are less costly.
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03 situations
Conversion research beyond speed?
Broader CRO research that depends on analytics experiments can be discussed inside store design or marketing measurement — we do not invent guaranteed conversion lifts from speed work alone.
02Overview
- Shopify
- Theme performance
- Lighthouse (lab)
- Front-end delivery
Performance engagements focus on theme architecture cleanup, asset and script optimization, and front-end delivery improvements without stripping the brand experience.
A documented Buildaze case study reports a Lighthouse Performance lab score moving from 28 to 91. That is a lab metric — not a Core Web Vitals field claim or revenue outcome. Exact tool version, device profile and test date remain owner-verified where recorded.
CRO experimentation that needs analytics tooling and traffic may be nested with store or marketing work when evidence supports it.
03What we ship
- Theme performance audits
- JavaScript and app impact review
- Image and asset delivery improvements
- Critical rendering path fixes in scope
- Comparable lab measurement notes
Key deliverables
- Performance audit findings
- Prioritized optimization backlog
- Implemented front-end changes in scope
- Before/after lab notes when measured
What's included
- Baseline review of key templates
- Scoped optimization implementation
- QA on critical shopping paths
- Measurement notes for agreed pages
04Process
01Scoped
Audit
Identify theme, app, media and rendering bottlenecks.
02Scoped
Prioritize
Choose changes that improve real shopping paths.
03Scoped
Optimize
Implement maintainable front-end and theme fixes.
04Scoped
Measure
Record comparable lab results where tested; distinguish field CWV separately.
05Related work
06Common questions
Performance FAQs
No. Lighthouse lab scores are diagnostic. Field Core Web Vitals come from real-user data and can differ by device, network and page.
07Related services
08Contact
Tell us what you need to build or improve.
Share a few project details on the contact page. You do not need a finished specification to start.