I’m somewhat of a fast typer. In my experience, fast typing doesn’t help much in the world of coding. It’s better to be slow and write quality code.
That being said, if you really want to increase your coding efficiency,use keyboard shortcuts. You’d be surprised how quickly you can do things on they keyboard vs the mouse. The time saved really starts to add up.
Also, whatever text editor you’re using, look at all of the features available on it and try to use them as much as possible. A text editor like Sublime has 3rd party packages that can help with various things too.