Unsure, but several things could cause it.
-if the computer is too old and/or drivers are out of date
-computer is a bit slow and it takes a minute to show the screen
-game has a different region than the computer’s language settings

Mine usually follows 2, as I hear the music and see a black screen for a minute or so before it loads in.

I’m not a primo tech specialist, so that’s about all I know.