I’m not sure any such study exists for any editors, so it’s hard to argue this. However, anecdotally, Vim’s basic navigation (hjkl) and a few common shortcuts (

I’m not sure any such study exists for any editors, so it’s hard to argue this. However, anecdotally, Vim’s basic navigation (hjkl) and a few common shortcuts (delete entire line dd, new line and type o, change word ciw) are so useful it’s difficult to believe you can’t type can change things faster than an editor without those shortcuts. I can’t really compare to eg. Emacs bindings, as I have no experience with those, but most text editors have nothing, and if you have to reach for a mouse or arrow keys instead Vim is imo going to be much better once you’ve learnt it.