typescript - Angular2：即使是一些小改动，实时重载也需要大约10秒

操作系统：Mac OS X

我正在使用 ng-cli 来引导项目。我对自动生成的文件几乎没有做什么修改。

以下是生成的 npm 配置文件。

Package.json

{
  "name": "hello-world-app",
  "version": "0.0.0",
  "license": "MIT",
  "angular-cli": {},
  "scripts": {
    "start": "ng server",
    "postinstall": "typings install",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update",
    "e2e": "protractor"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "2.0.0-rc.1",
    "@angular/compiler": "2.0.0-rc.1",
    "@angular/core": "2.0.0-rc.1",
    "@angular/http": "2.0.0-rc.1",
    "@angular/platform-browser": "2.0.0-rc.1",
    "@angular/platform-browser-dynamic": "2.0.0-rc.1",
    "@angular/router": "2.0.0-rc.1",
    "es6-shim": "^0.35.0",
    "reflect-metadata": "0.1.3",
    "rxjs": "5.0.0-beta.6",
    "semantic-ui": "^2.1.8",
    "systemjs": "0.19.26",
    "zone.js": "^0.6.12"
  },
  "devDependencies": {
    "angular-cli": "^1.0.0-beta.5",
    "codelyzer": "0.0.19",
    "ember-cli-inject-live-reload": "^1.4.0",
    "jasmine-core": "^2.4.1",
    "jasmine-spec-reporter": "^2.4.0",
    "karma": "^0.13.15",
    "karma-chrome-launcher": "^0.2.3",
    "karma-jasmine": "^0.3.8",
    "protractor": "^3.3.0",
    "ts-node": "^0.5.5",
    "tslint": "^3.6.0",
    "typescript": "^1.8.10",
    "typings": "^0.8.1"
  }
}

我不知道为什么几字节的文件加载要花大约1秒钟。我在谷歌上搜索过，但没找到什么相关的。请帮帮我。

编辑：在 Safari 浏览器中加载速度快得多，但在 Firefox 和 Chrome 中非常慢。