Damn this app is so fast. It handles 24x War and Peace without sweating a bit. Much faster than Sublime as well. The only thing with equivalent performance (on macOS) is BBEdit. Does anyone know how they are able to load such large files so fast? I guess they lazy load from disk as well?

I'm writing a block editor in Qt C++ (Npp is also written in Qt) and QML[1], so I'm very curious. I load the entire text and then render it using a virtualized list (ListView). My app is currently the fastest block editor that I've tested. But I always want to take it up a notch and even compete in performance with Sublime and BBEdit, and now NotepadNext.

[1] https://www.get-plume.com/

EDIT: It's REALLY fast and very efficient (consumes low amount of memory). Seems to be faster than BBEdit (unscientific). If anyone has a clue about the architecture or can share a link, it will be appreciated.