warning about webpack file sizes

[lacava]

lab_1      | Hash: 34674cd344f4749b61a6
lab_1      | Version: webpack 4.43.0
lab_1      | Time: 14731ms
lab_1      | Built at: 12/11/2020 6:40:59 PM
lab_1      |                           Asset       Size  Chunks                                Chunk Names
lab_1      |                      index.html  701 bytes          [emitted]                     
lab_1      |    main.5c9a5b79425c83428146.js    120 KiB       0  [emitted] [immutable]         main
lab_1      | runtime.fe1d403dc37d851dbaed.js   1.46 KiB       1  [emitted] [immutable]         runtime
lab_1      | vendors.da6ad3c9f56715a331d1.js   1.44 MiB       2  [emitted] [immutable]  [big]  vendors
lab_1      | Entrypoint main [big] = runtime.fe1d403dc37d851dbaed.js vendors.da6ad3c9f56715a331d1.js main.5c9a5b79425c83428146.js
lab_1      | [0] multi ./src/index.jsx 28 bytes {0} [built]
lab_1      | [+6Dn] ./node_modules/semantic-ui-react/dist/es/collections/Grid/Grid.js + 2 modules 10.8 KiB {2} [built]
lab_1      |     |    3 modules
lab_1      | [/MKj] ./node_modules/react-redux/es/index.js + 17 modules 36.4 KiB {2} [built]
lab_1      |     |    18 modules
lab_1      | [2KWV] ./src/utils/device-watcher.js 2.2 KiB {0} [built]
lab_1      | [3UD+] (webpack)/buildin/harmony-module.js 573 bytes {2} [built]
lab_1      | [3mGJ] ./node_modules/semantic-ui-react/dist/es/elements/Segment/Segment.js + 2 modules 8.07 KiB {2} [built]
lab_1      |     |    3 modules
lab_1      | [5XkN] ./node_modules/semantic-ui-react/dist/es/elements/Image/Image.js + 4 modules 17.1 KiB {2} [built]
lab_1      |     |    5 modules
lab_1      | [7RL8] ./src/index.jsx + 69 modules 330 KiB {0} [built]
lab_1      |     | ./src/index.jsx 1.54 KiB [built]
lab_1      |     | ./src/config/configStore.js 1.93 KiB [built]
lab_1      |     | ./src/config/configSocket.js 2.15 KiB [built]
lab_1      |     | ./src/data/datasets/dataset/actions.js 3.03 KiB [built]
lab_1      |     | ./src/data/experiments/actions.js 2.05 KiB [built]
lab_1      |     | ./src/data/recommender/actions.js 1.68 KiB [built]
lab_1      |     | ./src/data/index.js 1.5 KiB [built]
lab_1      |     | ./src/data/preferences/actions.js 1.69 KiB [built]
lab_1      |     | ./src/data/preferences/index.js 2.34 KiB [built]
lab_1      |     | ./src/data/datasets/dataset/api.js 1.31 KiB [built]
lab_1      |     | ./src/data/datasets/dataset/index.js 4 KiB [built]
lab_1      |     | ./src/data/datasets/actions.js 1.64 KiB [built]
lab_1      |     | ./src/data/datasets/index.js 5.57 KiB [built]
lab_1      |     | ./src/data/experiments/api.js 1.4 KiB [built]
lab_1      |     | ./src/data/experiments/selected/actions.js 1.83 KiB [built]
lab_1      |     |     + 55 hidden modules
lab_1      | [Ji7U] ./node_modules/@babel/runtime/helpers/esm/inherits.js + 1 modules 687 bytes {2} [built]
lab_1      |     |    2 modules
lab_1      | [QetY] ./node_modules/semantic-ui-react/dist/es/elements/Button/Button.js + 3 modules 18 KiB {2} [built]
lab_1      |     |    4 modules
lab_1      | [YJCA] ./node_modules/react-sortable-hoc/dist/react-sortable-hoc.esm.js + 9 modules 56.5 KiB {2} [built]
lab_1      |     |    10 modules
lab_1      | [dtw8] ./node_modules/react-router/es/index.js + 32 modules 76.4 KiB {2} [built]
lab_1      |     |    33 modules
lab_1      | [fvjX] ./node_modules/redux/es/index.js + 15 modules 26.2 KiB {2} [built]
lab_1      |     |    16 modules
lab_1      | [yLpj] (webpack)/buildin/global.js 472 bytes {2} [built]
lab_1      | [yzbm] ./node_modules/react-dropzone/dist/es/index.js + 5 modules 55.4 KiB {2} [built]
lab_1      |     |    6 modules
lab_1      |     + 874 hidden modules
lab_1      | 
lab_1      | WARNING in asset size limit: The following asset(s) exceed the recommended size limit (244 KiB).
lab_1      | This can impact web performance.
lab_1      | Assets: 
lab_1      |   vendors.da6ad3c9f56715a331d1.js (1.44 MiB)
lab_1      | 
lab_1      | WARNING in entrypoint size limit: The following entrypoint(s) combined asset size exceeds the recommended limit (244 KiB). This can impact web performance.
lab_1      | Entrypoints:
lab_1      |   main (1.56 MiB)
lab_1      |       runtime.fe1d403dc37d851dbaed.js
lab_1      |       vendors.da6ad3c9f56715a331d1.js
lab_1      |       main.5c9a5b79425c83428146.js
lab_1      | 
lab_1      | 
lab_1      | WARNING in webpack performance recommendations: 
lab_1      | You can limit the size of your bundles by using import() or require.ensure to lazy load some parts of your application.
lab_1      | For more info visit https://webpack.js.org/guides/code-splitting/
lab_1      | Child html-webpack-plugin for "index.html":
lab_1      |      1 asset
lab_1      |     Entrypoint undefined = index.html
lab_1      |     [YuTi] (webpack)/buildin/module.js 497 bytes {0} [built]
lab_1      |     [yLpj] (webpack)/buildin/global.js 472 bytes {0} [built]
lab_1      |         + 2 hidden modules