That has nothing to do with single threading that shit, an Arduino could draw that image faster. Most likely something fails to start correctly and windows waits for a 30 second timeout to run out before continuing anyway.
Well yeah, the reply is obviously a joke. Displaying an image is a single threaded task regardless of the contents, and adding threads will just make it slower.
https://support.microsoft.com/en-gb/topic/the-welcome-screen-may-be-displayed-for-30-seconds-during-the-logon-process-after-you-set-a-solid-color-as-the-desktop-background-in-windows-7-or-in-windows-server-2008-r2-b4565ced-703a-cc85-bf9c-6b3d586d6421
That has nothing to do with single threading that shit, an Arduino could draw that image faster. Most likely something fails to start correctly and windows waits for a 30 second timeout to run out before continuing anyway.
Well yeah, the reply is obviously a joke. Displaying an image is a single threaded task regardless of the contents, and adding threads will just make it slower.