No, there is not. The simulation is a core game mechanic, if your system is experiencing difficulty while running the game (presumably in adventurer mode?) then you should run a small or pocket world gen with low civ and site settings, that may help alleviate the problem.
Ok so to test something i put every thing as low as i could i made the game have no temp and no weather and i still get lag spikes when moving around (Yes I'm a fan of adventuring)
I don't get it i would think a i3 3240 3.40 GHz would be ok to play this game

I mean i just find this stutter really annoying.....