relativity from nraas gives you control over time (and skills/needs bound to it) but its not easy to use which i found is wee frustrating and maybe better for advanced users? (meaning to costumize the time flow to ones taste). on the other hand since it slows down the in-game time it has no negative backdrop on animations (which i found was a BIG plus). maybe you want to take a look?
http://nraas.wikispaces.com/Relativity if you run into problems the help support on that site (you must be registered though) is quite good ;-)
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