My experience is that Vim is hard to use when you start to add too many extensions. There are just too many shortcuts to remember, plugins may interact in unexpected ways, and things like contextual information don't look as nice as they could. It just feels very 'hacky' to try to use it as an IDE.
I prefer to use more recent editors (first Sublime, but I'm sold to VSCode now) that are better suited to modern display and usages. I still use vim mode but I'm not even sure I'm really more productive with it. Sometimes I wonder if I shouldn't focus on just using mac os default binding.
Editing text is boring. Programming is fun. Vim makes text editing like programming.
Their advantage is that they provide lots of automatic features like spellcheck and autocomplete out-of-the-box, whereas you have to set these up yourself for Emacs/Vim.
Fast is not the end goal.
