Requiring more patience and time fits the definition of hinder.

Y'know, that gives me an idea. Why not a foot-controlled mouse? That way I'd never have to take my hands off the keyboard.

(quick googling)

Oh, they already exist. Has anyone ever used one? They're three hundred bucks, so I'm not gonna buy one just to try it out and see if I like it.

A SmartNav head mouse can be had for less. I've bought two for my girlfriend who has RSI. Yes, they work quite well, but you'll need practice, and a way to hit a mouse button without using your feet. (Hard to move your feet without using your head.) There are programs that will emulate a mouse button for you.

A coworker of mine uses one and loves it.