It only takes two seconds to press 'grand mobilise'.
Who in God's name uses that anyway. The AI can refuse to mobilize their host. If you muster their forces manually, they cant say crap.
As for the pause to notify the GM to slow down the speed if you are at war... Well, i remember ocasions when we were at AN. I remember a lot of folks asking it to slow it down, as i did since i was at war. Surely if it is at Slow it is already slow enough. BN might be a problem however, depending on the scale of the war.
Last session i had lots of problems. I had to send gifts to my disloyal vassals, i had to fight in north africa, i had to fight in iberia, and in sicily, while trying to find ocasional brides and fighting vassals that just decided to declare indepedence out of thin air. All at the same time.
I do have confidence in my skills to manage several fronts at the same time as in EU, but frankly speaking i had big problems doing such last time, till we slowed down.
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As for the silly of excuse of Crusaders doing their war in real time... I cant stop laughing, really. In real life one day isnt one second, either, mind you. As for historicity... Georgia owning parts of Byzantium? Norway controlling Sweden by 1100? England controlled by a scotish monarch? Ahem... If you want history, please, leave CK and go search some other game, for everyone at this stage know that CK is totaly ahistorical.
And as for being selfish for asking the speed to be reduced... Frankly, in all games, i repeat, all games i have played, produced by paradox, be it HOI, Victoria, EU, the game is always slowed down when there is something really big hapening, like a war. You seriously cant expect players to manage their country at war at the same speed they were managing it in peace.