Passage of time is for sure known for being subjective.
Not what i mean ...
If you will play with just single person, who will take 5 minutes to pick spell he will be using next ... then yes, it will be slow ... But not bcs there is too many characters, just bcs user of one of them is incredibly slow.
In the words of the senior NCO instructor at cadet battalion: “If you ain’t cheating you ain’t trying. And if you got caught you didn’t try hard enough!”