Speed up browserSync with watcher after SASS compiling

speed_up_browserSync_watch.js

// If the browserreload with browserSync and watch after SASS compiling is to slow,
// following solutions could help.
// Use one or more of the following options
// Options:
// spawn: false
// interrupt: true
// persistent: true
// interval: 5007

grunt.initConfig({
  watch: {
    sass: {
        files: ['<%= path %>sass/*.scss', '<%= path %>sass/components/*.scss'],
        tasks: ['sass:dev'],
        options: {
            // speed up watching
            spawn: false
            // ,
            // interrupt: true,
            // persistent: true, 
            // interval: 5007
        }
    },
    html: {
        files: ['<%= path %>*.html']
    },
    js: {
        files: ['<%= path %>js/*.js']
    }
  }
});