How does Vapor Mode optimize WebGPU particle systems?

<script setup>
import { signal, effect } from 'vue/vapor'
import { useWebGPU } from 'vue/webgpu'

const { device, pipeline } = useWebGPU({ shader: '/particles.wgsl' })
const time = signal(0)
const mouse = signal({ x: 0, y: 0 })
const particleBuffer = device.createBuffer({ 
  size: 1000000 * 16, 
  usage: GPUBufferUsage.STORAGE | GPUBufferUsage.VERTEX 
})

effect(() => {
  const encoder = device.createCommandEncoder()
  const pass = encoder.beginComputePass()
  pass.setPipeline(pipeline)
  pass.setBindGroup(0, bindGroupWithSignals(time.value, mouse.value))
  pass.dispatchWorkgroups(15625)  // 1M particles / 64
  pass.end()
  device.queue.submit([encoder.finish()])
})
</script>