Sometimes it is really hard to figure out time in the game depending upon the threads you are in, so slower time might be good for mass threads.
Also, I think that perhaps some sort of time system should be worked out so that people do not get confused as to when things happen and how they may interfere with/not bother other threads. Something that will still allow for the freedom of time while giving those who need a time reference something to go off of.
Hopefully it makes some sense because I know I was rambling.