webpack speed improvements

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@a2nt/ss-bootstrap-ui-webpack-boilerplate",
-  "version": "1.8.1",
+  "version": "1.8.2",
   "author": "Tony Air <tony@twma.pro>",
   "license": "MIT",
   "description": "This UI Kit allows you to build Bootstrap 4 webapp with some extra UI features. It's easy to extend and easy to convert HTML templates to CMS templates.",
@@ -85,6 +85,7 @@
     "extract-text-webpack-plugin": "^4.0.0-beta.0",
     "favicons-webpack-plugin": "^1.0.2",
     "file-loader": "^1.1.5",
+    "hard-source-webpack-plugin": "^0.13.1",
     "html-loader": "^0.5.5",
     "html-webpack-plugin": "^4.0.0-beta.11",
     "imagemin-gifsicle": "^7.0.0",
@@ -92,6 +93,7 @@
     "imagemin-optipng": "^7.1.0",
     "imagemin-svgo": "^7.0.0",
     "imagemin-webpack": "^5.1.1",
+    "loglevel": "^1.6.7",
     "lost": "^8.3.1",
     "material-design-color": "^2.3.2",
     "node-sass": "^4.13.1",

webpack.config.js

@@ -7,6 +7,8 @@ const path = require('path');
 const filesystem = require('fs');
 
 const autoprefixer = require('autoprefixer');
+
+const HardSourceWebpackPlugin = require('hard-source-webpack-plugin');
 const ExtractTextPlugin = require('extract-text-webpack-plugin');
 
 const TerserPlugin = require('terser-webpack-plugin');
@@ -20,6 +22,7 @@ const plugins = [
       NODE_ENV: JSON.stringify('production'),
     },
   }),
+  new HardSourceWebpackPlugin(),
   new webpack.LoaderOptionsPlugin({
     minimize: COMPRESS,
     debug: false,
@@ -240,10 +243,12 @@ module.exports = {
               ['@babel/transform-react-jsx'],
               ['react-hot-loader/babel'],
             ],
+            cacheDirectory: true,
+            cacheCompression: false,
           },
         },
       },
-      {
+      /*{
         test: /\.tsx?$/,
         use: 'ts-loader',
         exclude: /node_modules/,
@@ -251,7 +256,7 @@ module.exports = {
       {
         test: /\.coffee?$/,
         use: 'coffee-loader',
-      },
+      },*/
       {
         test: /\.worker\.js$/,
         use: {