big files = slow
I have json file of 46607 lines and scrolling through it is quite slow. Disabling syntax highlighter by setting filetype to plain text makes it slightly better, but still slow. Also ctrl+f is really really slow
Not entirely highlighter's fault. Try mypy/checker.py with syntax highlighter plugin(s) disabled.
Do we have a blessed way to do profiling on porcupine?
No :D
If you have no idea what is causing the problem, you can get started by disabling all plugins in the plugin manager and see if that helps. Then enable them a few at a time and narrow down the problem to the plugin/plugins that cause slowness.
What json file are you editing??? Isn't a file of that length kinda going to be slow implicitly based on its length?