• VS Code Version: master
• OS Version: Linux remote host

Steps to Reproduce:

1. open a workspace with 400k+ files (for example 5 copies of torvalds/linux in 1 workspace)
2. cmd-p > start typing (eg "linux"), then stop typing
3. observe busy indicator for upwards of 30 seconds in the search box

If I paste my search term directly into cmd-p, then the search takes < 5 seconds. So I think there's something going on with the typing handling which is slowing things down.