02 · Case study
Polska Nutrition
Premium E-Commerce Platform
High-performance sports nutrition e-commerce platform with optimized Core Web Vitals and ~25% faster Time-to-Interactive.
Overview
Polska Nutrition is a premium sports nutrition e-commerce experience built with Next.js, TypeScript, and Tailwind CSS. The focus was product quality, conversion-ready UX, and measurable frontend performance.
Problem
E-commerce storefronts often ship heavy client bundles, unoptimized media, and slow interactivity—hurting conversion and SEO. The product needed a fast, polished storefront without sacrificing design quality.
Solution
Built a performance-first Next.js storefront with advanced image optimization, strategic caching, and code splitting. Core Web Vitals improvements and a ~25% reduction in Time-to-Interactive made the experience feel premium and responsive.
Architecture
System architecture
User
Browse & checkout
Next.js App
SSR/SSG storefront
Optimized Assets
Images & caching
Code Splitting
Route-level bundles
Commerce APIs
Catalog & checkout
Fast Experience
Strong CWV / TTI
Technical decisions
- Leveraged Next.js image optimization to reduce payload and improve LCP on product-heavy pages.
- Applied strategic caching and code splitting to cut unnecessary JavaScript on critical paths.
- Used TypeScript end-to-end for safer product/catalog data modeling and maintainable UI.
- Styled with Tailwind CSS for a consistent design system and fast iteration without CSS bloat.
Performance
- Improved Core Web Vitals across key storefront routes.
- Reduced Time-to-Interactive by approximately 25% through image optimization, caching, and code splitting.
Key highlights
- High-performance sports nutrition e-commerce
- Improved Core Web Vitals
- ~25% reduction in Time-to-Interactive
- Advanced image optimization
- Strategic caching and code splitting