Angular Universal TTFb需要大量时间进行响应

Question

在将Angular应用的性能最佳化后，我将Angular与SSR Node.js服务器一起使用时，通过渲染HTML大约需要16 s的响应时间

我试图压缩html

i将@ nguniversal / express-engine与延迟加载（Angular 6）一起使用 和Express应用

light house test

response time

  

我的代码

enableProdMode();

const app = express();
const PORT = process.env.PORT || 5410;
const arBundle = require('./server/ar/main');
const enBundle = require('./server/en/main');
export const languageEngines = [{
  id: 'en',
  base: '/en'
},
{
  id: 'ar',
  base: '/ar'
},
{
  id: 'en',
  base: '/'
},
];

app.engine('html', ngExpressEngine({
  bootstrap: enBundle.AppServerModuleNgFactory,
  providers: [
    provideModuleMap(enBundle.LAZY_MODULE_MAP)
  ]
}));
app.set('view engine', 'html');
app.set('views', join(__dirname, 'browser'));

app.get('*.*', express.static((__dirname + '/browser'), {
  maxAge: '1y'
}));

languageEngines.forEach(languageEngine => {

  app.get(languageEngine.base + "*", function (req, res) {

    res.render(__dirname + "/browser/" + languageEngine.id + "/index.html", {
      req: req,
      res: res
    });
  });
});