Out of the gate, Emacs feels clumsy and frustrating compared to ST or any other more standard text editor.
Where emacs shines is when you start to micro-analyze your text editing process and learn how to optimize it with emacs.
Until you get to that stage, though, which isn't always the beginning for many - emacs probably isn't for you.
It's not going to make you edit text faster just because you use it - you have to actively study and look at new ways of editing. Watch an emacs master at work, it will blow your mind.