The skill counts for at least as much as the tool.
An electric motor is nice if you're in a hurry.
You will develop (arguably better) skills running a very low power (hand or foot) lathe. Tool sharpness is not just critical, it won't work without it.
Here's another fascinating data point where a guy makes a chess piece with a minimal foot powered lathe and one turning tool...
It doesn't have to be fancy to do good work.
It's also much harder to injure yourself on a low powered lathe.