emacs -Q
M-x byte-compile-file <RET> ~/.emacs.d/init.el <RET>
C-x C-c
emacs
;;; init.el is now native-compiled
C-h v user-init-file <RET>
;;; => "d:/mypath/Home/.emacs.d/init.el"
C-x C-c
emacs
C-h v user-init-file <RET>
;;; =>
"d:/mypath/Home/.emacs.d/native/29.0.50-a4a10996/init-7890dda9-d677a456.eln"