I have been an Emacs user for 20+ years, and I don't use editors that can't be configured to use Emacs key bindings. Luckily IDEs like Visual Studio can be configured to mimic Emacs. To me the issues that make Emacs not modern are: (1) Slow startup. (2) Buggy language modes. (The ones that come with it are good, but third party ones such as web-mode are buggy.) and (3) No intellisense out of the box.
And if your machine is slow you can use a daemon.