The issue isn't the terminal. The issue seems to be that Claude is using React to render to that terminal at 60FPS like a goddamn video game
Vibe coding is soooo awesome!
And people thought that Electron was a resource pig. You ain't seen nothing yet.
Yeah, welcome to 1980, where a library coming from a roguelike shaped almost all the TUI's for Unix until ~2010 or so, Curses.
A 386 could run NetHack at blazing fast speeds and read the news in a TTY perfectly well.
A multicore machine can't get the basic thanks to the 'wonderful' JS. Heck, even s9 Scheme from http://t3x.org ships a Curses module, enough to drive some text and maybe boxes/menues and it should fit in two floppies. A single one if the image it's generated later on-disk.
Consider how bloated data centers are when local models are now equally capable of human-scoped problem solving.
Software bloat fills a void created by itself.
Yeah that was my first thought. Use a TUI that abuses the terminal to make a experience poorly recreating an actual GUI, don't be shocked if it doesn't turn out very efficient