I was editing JSHint - most of which is in a single 5000 line file - yesterday, with the same file open in split view, and was disappointed to see ST2 chugging a bit, with visible input lag.
In ST3, no such problems.
In ST3, no such problems.
If you listen for on_modified as a plugin and do any work, the next keystroke won't appear until you return from on_modified. Multiply that across many plugins, some of which don't care about speed, and your editor becomes very slow.