How does WebAssembly streaming compilation improve performance for gaming and machine learning web applications?

// Progressive game engine loading
const importObject = {
  env: {
    log: console.log,
    performance_now: () => performance.now()
  }
};

WebAssembly.instantiateStreaming(fetch('game-engine.wasm'), importObject)
  .then(result => {
    // Core loop starts immediately
    const { init, update, render } = result.instance.exports;
    init();
    
    function gameLoop() {
      update(performance.now() / 1000);
      render();
      requestAnimationFrame(gameLoop);
    }
    gameLoop();
  });