Webpack performance

Recently I started using Webpack with ReactJS, and I encountered such a problem that the build time takes between 150 and 200 seconds, I suspect. that this is not normal)) About 30 plug-ins are stored in /node_modules/ , in babel'e included syntax check only on "my" files. Tell me, how can I speed up the build, or is the normal execution time of 200 seconds?

In the project, there are already about 50 modules (components, actions, reducer).

PPS Here is my version of the config, I will be grateful if you correct it!

 var ExtractTextPlugin = require("extract-text-webpack-plugin"); var path = require("path"); module.exports = { entry: "./scripts/index", output: { path: path.join(__dirname, 'build'), filename: "bundle.js" }, devtool: 'source-map', module: { loaders: [ { test:/\.js$/, include: __dirname + '/scripts', loader: 'babel' }, { test:/\.css$/, include: __dirname + '/styles', loader: ExtractTextPlugin.extract('style-loader', 'css-loader') }, { test:/\.styl$/, loader: ExtractTextPlugin.extract('style-loader', 'css-loader!stylus-loader') }, { test: /\.(jpe?g|png|gif|svg)$/, loaders: [ 'file-loader?name=img/[name].[ext]', ] }, { test: /\.(eot|svg|ttf|woff|woff2)$/, include: __dirname + '/fonts', loader: 'file-loader?name=fonts/[name].[ext]' }, { test: /\.json$/, loader: 'json' } ] }, devServer: { host: 'localhost', port: 3000 }, plugins: [ new ExtractTextPlugin('bundle.css') ] }; 

Attaching Package.json

 { "name": "gps-frontend", "version": "1.0.0", "author": "lardi-trans", "license": "ISC", "dependencies": { "leaflet": "^0.7.7", "leaflet.icon.glyph": "^0.2.0", "net": "^1.0.2", "react": "^15.1.0", "react-addons-update": "^15.1.0", "react-color-picker": "^3.1.0", "react-dom": "^15.0.0", "react-localization": "0.0.2", "react-redux": "^4.4.5", "redux": "^3.5.1", "redux-logger": "^2.6.1", "sockjs-client": "^1.1.0", "stompjs": "^2.3.3", "traverson": "^3.1.3", "traverson-hal": "^4.1.1" }, "devDependencies": { "babel-core": "^6.7.2", "babel-loader": "^6.2.4", "babel-plugin-object-assign": "^1.2.1", "babel-plugin-transform-es2015-destructuring": "^6.9.0", "babel-preset-es2015": "^6.6.0", "babel-preset-react": "^6.5.0", "babel-preset-stage-0": "^6.5.0", "css-loader": "^0.23.1", "extract-text-webpack-plugin": "^1.0.1", "file-loader": "^0.8.5", "image-webpack-loader": "^1.6.3", "json-loader": "^0.5.4", "react-hot-loader": "^1.3.0", "redux-thunk": "^2.0.1", "style-loader": "^0.13.1", "stylus": "^0.54.2", "stylus-loader": "^2.0.0", "webpack": "^1.12.14" } }