Wait, go back to the first sentence:
> I am working on a high-performance game that runs over ssh. The TUI for the game is created in bubbletea 1 and sent over ssh via wish.
> The game is played in an 80x60 window that I update 10 times a second. I’m targeting at least 2,000 concurrent players, which means updating ~100 million cells a second. I care about performance.
High performance with ssh and wish? For sure not. Rather use UDP over secure sockets. Or just normal sockets. Even Claude would come up with much faster code than the ssh/wish nonsense. Or mosh, but this also too complicated.