alt Hacker News> Terminal output itself is fast and consumes almost nothing. You can have 60fps terminal apps that update content every frame and that consume almost no CPU time.
The TUI mode is a client-server architecture. An analogy would be like an html page where all content is updated server side. Try to do 60 fps and you’ll have flickering as well.
No. Fetching pages from remote server will just make the client wait for I/O. That takes 0 CPU load and if the server can't respond at 60fps, lowered redrawing frequency would mean even less CPU load from the terminal redrawing itself.
This does not explain 100% CPU load these harnesses sometimes exhibit.