I'm referring more to startup time than I am responsiveness. Emacs has only ever been "sluggish" when I've used it on a system with little memory.
http://stackoverflow.com/questions/778716/how-can-i-make-ema...
(require 'cygwin-mount)
(setq cygwin-mount-cygwin-bin-directory "C:/cygwin/bin")
(cygwin-mount-activate)
And I use the following alias to open files directly from bash: alias emacs='D:/tools/emacs-22.3/bin/emacsclient.exe --no-wait --alternate-editor=D:/tools/emacs-22.3/bin/runemacs.exe'