Nautilus' desktop menu is first displayed as part of the desktop window before being hosted by the top panel of Unity. That probably slows down the startup but more importantly that has the consequence of having the wallpaper shift briefly up and down during the login sequence.
Nautilus' desktop menu is first displayed as part of the desktop window before being hosted by the top panel of Unity. That probably slows down the startup but more importantly that has the consequence of having the wallpaper shift briefly up and down during the login sequence.