只用 node child_process 模块如何能提高服务器的响应速度?

master.js

const cp = require('child_process');
const fork = cp.fork;
const os = require('os');
const cpus = os.cpus();
const Net = require('net');

const muti_process = [];
const port = 1337;
const host = '127.0.0.1';
const server = new Net.Server();

for(let i = 0, length = cpus.length; i < length; i ++) {
  muti_process.push(fork('./server.js'));
}

server.listen(port, host, () => {
  muti_process.forEach((process) => {
    process.send('server', server);
  });
  server.close();
  console.log(`server listen on port ${port}`);
});

server.js

const Net = require('net');

const port = process.port || 8080;
const host = '127.0.0.1';

const server = new Net.Server();

function sleep (second) {
  second = parseInt(second, 10);
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      resolve();
    }, second * 1000);
  });
}

let allSpend = 0;

server.on('connection', (socket) => {
  console.log('a new connection has been established.');
  const start = Date.now();
  console.log('start time:', start);
  socket.on('data', (chunk) => {
    console.log(`received data from client...`);
    response(chunk);
  });

  socket.on('end', () => {
    console.log('Closing connection with the client.\n');
  });

  async function response (chunk) {
    console.log(`wait for ${ allSpend } s....`);
    await sleep(3);
    socket.write(chunk.toString());
    socket.end();
    console.log(`request spend ${Math.floor( ( Date.now() - start ) / 1000 ) } s`);
    allSpend += 3;
  }

});

server.on('error', (err) => {
  console.log(err);
});

// server.listen(port, host, () => {
//   console.log(`server is runing on port ${port}\n`);
// });

process.on('message', (message, tcp) => {
  if(message == 'server') {
    tcp.on('connection', (socket) => {
      console.log(`handled by process ${process.pid}`);
      server.emit('connection', socket);
    });
  }
});

master 启动多进程 node 服务, 本意是当请求 localshot:1337/ 的时候, 将单进程时的服务器处理两个请求需要的 6 秒减少为多进程下的 3 秒, 但是目前在多进程下依然是 6 秒,请问各位 child_process 模块能否提高请求响应速度? 如果能应该怎么做? 如果不能, child_process 的本意是什么? 恳求回答 附上项目代码: https://github.com/zhangxiang958/ComputerNetworkLab/blob/master/Socket1_WebServer/source/muti_process/server.js