I'll use 80% hitrate as a baseline, any less than that and you should be using a different food.
5 dex gives 2-3 acc, we'll use 3, since that's max u can get from with h2h.
3 acc is 1.5% hitrate increase
1.5/80 = 1.875% increase
For haste, for 1.875% increase or higher
1/(100-47) = 1/53 = 1.887% increase.
Basically, if you have no brd and shitty acc, Aurore. As soon as you get a brd or the gear in other slots/food to step your game up, Aurore lose