I'm running Sublime Text 3 on Windows 10, with all my installed packages disabled. On idle, it is taking up ~31% of my CPU with one file opened. This seems like a ridiculous amount for a text editor - why is this?
This seems to be caused by indexing:
https://github.com/SublimeTextIssues/Core/issues/537
https://www.sublimetext.com/blog/articles/file-indexing
Try adding
"index_files": false
in your configuration