title: Chrome steps in debug mode are very slow
body: <p>Since version 1.38 doing steps in debug mode with Chrome work very slow, while when using Chromium its work fine. I am using Ubuntu 18.04.3 LTS.</p>
  
  <p>Chrome version : Version 80.0.3962.2 (Official Build) dev (64-bit)</p>
  
  <p><code>VS code launch.json</code>:</p>
  
  <pre><code>"version": "0.2.0",
  "configurations": [
    {
      "type": "Chromium",
      "request": "launch",
      "name": "Launch Chromium against localhost",
      "url": "http://localhost:4200/#",
      "webRoot": "${workspaceFolder}",
      "runtimeExecutable": "/usr/bin/chromium-browser",
      "runtimeArgs": [
        "--new-window",
        "-user-data-dir=\"/${workspaceFolder}/DevProfile\"",
        "--remote-debugging-port=9222",
        "--disable-background-networking"
      ]
    },
      {
          "type": "chrome",
          "request": "launch",
          "name": "Chrome 4200",
          "url": "http://localhost:4200",
          "webRoot": "${workspaceFolder}",
          "runtimeExecutable" : "/opt/google/chrome-unstable/chrome",
          // "outFiles": [ "${workspaceRoot}/build/**/*" ]
          "sourceMaps": true,
          // "trace": 
  </code></pre>