Serious question: If you switched from Vim to Emacs, and are happy with it, how fast/slow are you in Emacs for pure text manipulation (moving lines, changing text within quotes, joining lines, etc)?
Frankly, not quite as fast. But much faster in a lot of other interactions such as note taking, organizing stuff, writing structured text, interacting with git, using REPLs, using shells and many more.
I don't find the the difference between Emacs and Vim too big, but this is because I rebinded most of Emacs' default keybindings. Vim is faster for most things but not all, having to switch back to normal mode gets in the way sometimes.
However, Vim's '.' command is just so convenient! Emacs does have some packages to imitate it but they never worked quite alright for me.
Now that I am using evil-mode (Vim keybindings) in Emacs I am in a happy place.