Well, if I max all the buffs along with the Morrigane set, 99 agi, 90 dex, Concentration potion, and two or three more agi from other gear, the calculator says I have around 181 aspd.
With Blessing and Increase Agi, I can hit 184 aspd.
I don't know if this what you call "relatively high" but this seems pretty fast to me.
Besides, I'm more than willing to sacrifice a bit of speed to hit harder.
