All credits go to https://github.com/kajirikajiri/eslint-plugin-mui-path-imports

import { Box } from '@material-ui/core';

to

import Box from '@material-ui/core/Box';

Material-UI path imports

Use path import to avoid pulling in unused modules. Decreases waiting time.

Reduces about 10000 modules.

BEFORE

event - compiled successfully in 287 ms (11756 modules)
wait  - compiling...
event - compiled successfully in 384 ms (11756 modules)
wait  - compiling...
event - compiled successfully in 301 ms (11756 modules)
wait  - compiling...
event - compiled successfully in 298 ms (11756 modules)

AFTER

event - compiled successfully in 69 ms (1867 modules)
wait  - compiling...
event - compiled successfully in 72 ms (1867 modules)
wait  - compiling...
event - compiled successfully in 64 ms (1867 modules)
wait  - compiling...
event - compiled successfully in 84 ms (1867 modules)

Installation

You'll first need to install ESLint:

npm i eslint --save-dev

Next, install eslint-plugin-material-ui-path-imports:

npm install eslint-plugin-material-ui-path-imports --save-dev

Usage

Add plugin and rules to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

{
    "plugins": [
        "material-ui-path-imports"
    ],
    "rules": {
        "material-ui-path-imports/material-ui-path-imports": "error"
    }
}

And eslint --fix

import { Box } from '@material-ui/core';
↓
import Box from "@material-ui/core/Box";