It's something of a myth that keyboarding is faster than mousing for equivalent tasks - for example, people compare using keyboard shortcuts for selecting, copying, and pasting when they should be comparing selection with arrow keys.
Likewise, if you use VIM shortcuts to jump through the text, you're really comparing a find-and-replace feature which is just as fast with the mouse.
The real speed gains come from using keyboard shortcuts in combination with the mouse - it's not either/or. When you have a bunch of copy-pasting to do, keeping your right hand on the mouse for selection and left on Ctrl+C Ctrl+V is the fastest method.