Do leagues in 'View-only' impact the games speed?

Hi does having leagues in 'view only' make a difference to the speed of the game? like if i selected all leagues but only made the ones i want playable, does this make a difference, because the player count doesn't change, and the game still says i'm the same star level.

Also does it make it crashy? i know a few seasons in with lots of leagues the games in the past could become unstable (with like 80,000+ players).