title: VSCode practically unusable with slow intellisense without using extensions
body: <p>VSCode on my Macbook Pro is practically unusable due to the intellisense being ungodly slow. This includes:</p>
  <ul>
  <li>hovering to find typescript types, inferred and explicit types</li>
  <li>autocomplete variables/functions/etc</li>
  <li>autocomplete for using shortcuts</li>
  <li>error lines shown in editor</li>
  </ul>
  <p>For example, I will have an error show. Something like &quot;variable not defined&quot; or something simple. But then when I go to rewrite the code, it takes forever for VSCode to catch up. Sometimes I have to let it sit 40-50seconds before it catches up with my changes.
  Hovering over typescript types is practically impossible at times and utterly useless. Below is a screenshot of the &quot;lag&quot; - changes were made, but it stuck like this for 30+ seconds:</p>
  <p><a href="https://i.stack.imgur.com/e4ubi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/e4ubi.png" alt="enter image description here" /></a></p>
  <ul>
  <li>It may be the specific project, because I can't recreate it for smaller projects. However, its only a 200k line project.</li>
  <li>No specific extensions are slowing down VScode</li>
  <li>I tried downgrading VsCode with no help</li>
  </ul>
  <p>VSCODE VERSION: 1.47.3</p>