Extension causes high cpu load

[bjngeustyn]

• Issue Type: Performance
• Extension Name: yo
• Extension Version: 0.9.3
• OS Version: Darwin x64 17.7.0
• VSCode version: 1.32.3

:warning: Make sure to attach this file from your home-directory: /Users/barendgeustyn/samverschueren.yo-unresponsive.cpuprofile.txt :warning:

Find more details here: https://github.com/Microsoft/vscode/wiki/Explain:-extension-causes-high-cpu-load