Leagues loaded/ Database size

just wondring guys, i usually load around 16 leagues, and have a a few continents loaded, normally would have about 75,000 players. but the game is too busy if u know what i mean, it gets messy, and i never really keep track outside my own league, and whatever european competition im in. so for my latest save, iv just loaded spain, la liga, adelante, and segunda b., also loaded a huge database.

my question is, what will be the main differences in my game, apart from the obvious, less players, and leagues.

will spain end up dominating the international scene?, since their the only country loaded.

will most clubs in my game have a few spanish players a few seasons into the game because of this?

will the regens, good ones be mainly spanish?

will other clubs , english , italian ones move up the financial ladder even though their not loaded?

and will clubs outside spain have much transfer activity?

sorry for all the questions, but was just wondering before i get too stuck into the save.