On the simlulated times:
they are coded somewhere, I don't know where, but they can be altered, at least for legend difficulty. (haven't tested pther difficulties, could be possible there also)
here is how it works:
open database, navigate to the "track model" tab.
Find the column "hard_dry_lap_adjustment" and set the value you like. For example set "-2.0", and the simulated pole time (what happens when you fast forward) will be (roughly) 2 seconds faster.
Same goes for the "hard_wet_lap_adjustment", which controls heavy and light rain together.
BtW: really like your mod @
aagancia