Songtao

Performance Showcase

Live demonstrations of web performance optimization techniques and modern development patterns.

Server-Side Rendering & Streaming

This demonstrates SSR with React Suspense streaming. The content below is rendered on the server with a simulated delay, then streamed to the client progressively while showing a loading state.

SSRServer-Side Rendered Content

This component was rendered on the server and streamed to the client

Message: This content was rendered on the server and streamed to the client!

Generated at: 8/11/2025, 1:37:08 AM

Techniques Used:

Server-Side Rendering (SSR)Streaming HTMLReact SuspenseProgressive Enhancement

Why This Matters:

  • • Better SEO: Content is available immediately for crawlers
  • • Faster LCP: Critical content renders without waiting for JavaScript
  • • Progressive Loading: Users see content as soon as it's ready
  • • Resilient UX: Works even if JavaScript fails or is slow to load

Data Fetching with React Query

This component uses React Query (TanStack Query) to fetch data with intelligent caching, background updates, and optimistic loading states.

React QueryLive StatisticsUpdating...

Data fetched with caching, background updates, and error handling

Performance Benefits:

  • • Smart Caching: Data is cached and reused across components
  • • Background Updates: Stale data updates silently in the background
  • • Request Deduplication: Multiple identical requests are batched
  • • Optimistic Updates: UI updates immediately, reverts on error

Optimized Forms with React Hook Form

This form demonstrates performance-optimized form handling with minimal re-renders, intelligent validation, and smooth user experience.

React Hook FormPerformance-Optimized Form

Minimal re-renders, intelligent validation, and smooth UX

Performance Metrics

Component Re-renders:0
Form Submissions:0
Form State:Pristine
Validation:Invalid

Form Performance:

  • • Minimal Re-renders: Only validates changed fields
  • • Uncontrolled Components: Better performance than controlled inputs
  • • Debounced Validation: Reduces validation calls during typing
  • • Field-level Validation: Validates individual fields without full form re-render

Code Splitting & Dynamic Imports

This demonstrates lazy loading of non-critical components to reduce initial bundle size and improve loading performance.

Dynamic ImportCode Splitting Demo

Click buttons to lazy load components and see the performance impact

Chart Component

A heavy component with charting library (simulated)

Code Block Component

Syntax highlighter component (simulated)

Bundle Analysis

Initial Bundle:~125KB
Chart Component:~45KB (not loaded)
Code Component:~32KB (not loaded)
Total Loaded:~125KB

Code Splitting Benefits:

  • • Smaller Initial Bundle: Non-critical code loads on demand
  • • Faster Page Load: Critical content renders immediately
  • • Better Caching: Chunks can be cached independently
  • • Progressive Enhancement: Features load as needed

Performance is a Feature

Every optimization technique demonstrated here contributes to a faster, more reliable user experience. Performance isn't just about speed—it's about accessibility, SEO, user retention, and conversion rates.

<100ms

Perceived instant response

<1s

Maintains user flow

<3s

Maximum acceptable wait