Just to reply to a comment in another discussion on the same topic
'It should not affect your start up time. The panel contents are rendered from another process. It is a modeless dialog so you can just drag it out of the way and continue working'
my pc is a very fast one with 16GB ram. During the 10 seconds or so that the welcome screen is loading Photoshop is not available. (Other programs though are). All this adds up to a lot of wasted time if Phjotoshop is not left open all day.
Ramigrafx