Very slow compilation in beta.11 version

Bug Report

Ionic Info Run ionic info from a terminal/cmd prompt and paste the output below.

Ionic:

   ionic (Ionic CLI)          : 4.1.2 (/usr/local/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.10
   @angular-devkit/core       : 0.7.5
   @angular-devkit/schematics : 0.7.5
   @angular/cli               : 6.1.2
   @ionic/ng-toolkit          : 1.0.7
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : browser 5.0.4, ios 4.5.4
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.0.5, cordova-plugin-ionic-webview 1.1.1, (and 14 other plugins)

System:

   ios-deploy : 1.9.2
   ios-sim    : 6.1.2
   NodeJS     : v8.11.1 (/usr/local/Cellar/node@8/8.11.1/bin/node)
   npm        : 5.6.0
   OS         : macOS High Sierra
   Xcode      : Xcode 9.4.1 Build version 9F2000

Describe the Bug It is very slow to compile, with version 7 it went much faster it becomes impossible to debug, as it takes about 30 seconds to refresh.

Steps to Reproduce Steps to reproduce the behavior:

1. Use this command ionic cordova run browser -l or ionic serve
2. It is very slow to compile, with version 7 it went much faster it becomes impossible to debug, as it takes about 30 seconds to refresh.

[godenji]

What solved it for me was upgrading to Node 10.10.0 and NPM 6.4.1, along with removing existing node deps and reinstalling.

Previously beta 11 was horrendously slow, but after applying above steps rebuild times are quite fast (3-4 seconds), faster than ever in fact.

[ionitron-bot[bot]]

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