I had the same doubt. With CLIs you can make your own custom shortcuts, LLMs can use it to get things done for you as well. With TUIs I think either these are hobby projects or meant for people who are obsessed with speed.

Though speed impacts are also something which I am uncertain about. Comparing Vim with IDEs, for sure there will be few things which are faster in vim but decent no of things which can be done faster in an IDE as well, so can't comment on your overall speed gains.