The bundle size is significantly larger than recommended.

The bundle size is significantly larger than recommended.
Consider reducing it with code splitting: https://goo.gl/9VhYWB
You can also analyze the project dependencies: https://goo.gl/LeUzfb

webpack performance 的配置，
单个文件过大的时候，给开发者一个提示信息
https://webpack.js.org/configuration/performance/#performancemaxentrypointsize
https://stackoverflow.com/questions/57542777/reducing-bundle-size-of-a-production-application

  1. 通过 chainWebpack 设置 maxEntrypointSize 到一个够大的值
  2. 设置 hints 为false
  3. umi 的配置项，设置动态引入、external 、调整 splitChunks 策略
    1. https://umijs.org/zh-CN/guide/boost-compile-speed