Cisalfa Sport with PwC
How we increased conversions by 18% in just 3 weeks
How we supported PwC in improving the new Cisalfa Sport e-commerce experience, achieving Lighthouse scores above 90, eliminating CLS and strengthening conversion performance.
Final outcome
The storefront became faster and more stable, creating a stronger foundation for conversion, SEO and retention.
- 90+ Lighthouse score Stable performance across representative pages
- 0 Critical CLS Layout instability removed from key journeys
- +18% Conversions More conversions within the first 3 weeks
- -45% Mobile load time Load time on mobile cut by 45%
Initial challenge
Following the launch of the new Cisalfa Sport storefront, mobile loading remained slow, layout shifts affected customer confidence and conversion performance was below expectations.
- Elevated mobile loading times
- Critical cumulative layout shift
- Instability across key funnel stages
- A need to prioritise work by business impact
Our contribution
We joined as performance and conversion specialists, using Core Web Vitals and journey data to identify where technical issues had the greatest commercial impact.
- LCP and TTFB analysis
- CLS elimination across critical layouts
- Frontend asset and rendering optimisation
- Validation against customer-journey KPIs
Approach and delivery
The roadmap ranked interventions by impact and effort rather than chasing a synthetic score in isolation.
Technical changes were validated repeatedly across representative devices and funnel stages to ensure that measured speed translated into a more stable experience.
How we worked
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Audit and analysis
Mapped Core Web Vitals and journey-level bottlenecks.
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Technical optimisation
Improved loading, rendering and asset delivery.
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UX and layout stability
Removed CLS and stabilised critical funnel interactions.
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Validation and monitoring
Measured gains and checked production consistency.
Project highlights
Key takeaways
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01
Performance influences conversion
Speed and stability affect confidence throughout the funnel.
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02
Focus on the metrics that matter
The best roadmap connects technical indicators to customer and business outcomes.
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03
Monitoring must continue
Performance requires governance after the initial optimisation.
Conclusion
Performance optimisation is not a one-off score improvement. It is the discipline of removing friction from the journeys that generate value.
The programme gave Cisalfa Sport a faster, more stable experience and a repeatable basis for ongoing monitoring.