Extension causes high cpu load

[ehcaning]

• Issue Type: Performance
• Extension Name: bracket-pair-colorizer-2
• Extension Version: 0.0.28
• OS Version: Linux x64 4.15.0-29deepin-generic
• VSCode version: 1.33.0 CoenraadS.bracket-pair-colorizer-2-unresponsive.cpuprofile.txt

:warning: Make sure to attach this file from your home-directory: :warning:/home/ehcan/CoenraadS.bracket-pair-colorizer-2-unresponsive.cpuprofile.txt

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