perf: Optimize core performance metrics across frontend#182
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therealjhay merged 2 commits intoJun 30, 2026
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Implemented four critical performance optimizations to improve Core Web Vitals: 1. Font Display Optimization (Betta-Pay#43): Added explicit display: 'swap' to Inter font configuration to ensure text remains visible during webfont load, preventing FOIT and improving LCP metrics. 2. Route Prefetching (Betta-Pay#45): Added strategic router.prefetch() calls in merchant layout for commonly accessed routes (transactions, payments) to reduce navigation latency for frequent user journeys. 3. Virtual Scrolling for Transactions Table (Betta-Pay#46): Integrated @tanstack/react-virtual to render only visible table rows. Fixed height container (600px) with overflow scroll ensures smooth scrolling with 1000+ rows while reducing DOM nodes from thousands to ~15-20 visible at any time. Maintains proper table semantics. 4. Icon Tree-Shaking Verification (Betta-Pay#44): Audited all lucide-react imports to confirm named-import pattern (no wildcard imports). Added @next/bundle-analyzer for production bundle verification that only used icons are included. All changes maintain existing functionality and preserve search/filter on full dataset. Changes follow project code patterns and pass linting checks. Closes Betta-Pay#43, Betta-Pay#44, Betta-Pay#45, Betta-Pay#46 Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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Summary
Implemented four critical performance optimizations to improve Core Web Vitals and user experience:
#43 - Font Display Optimization
#45 - Route Prefetching
#46 - Virtual Scrolling for Transactions Table
#44 - Icon Tree-Shaking Verification
Closes #43, Closes #44, Closes #45, Closes #46