Thanks for the info. So saying that, does it mean it'll break the game? Would you recommend me applying it?
I couldn't say with Morrowind, but with FO3, NV and Oblivion it can cause problems. It is generally recommended to not go too low, the lowest I have used was for Oblivion where I set it to (set timescale to 6), so 1 real hour = 6 ingame.
In FO3 people can die for no reason, or wander off and appear in places they are not supposed to(the wonders of Gamebryo!) and the biggest problem in all games is quest points not triggering when it is set too low