DPS Calculation Inaccurate

[Dexterity]

Im pretty sure there is something wrong with the way you calculate dps, for example, had 2 items on my warrior:
Item 1: 16-19 Damage, 34 dps, 0.9 speed
Item 2: 16-21 Damage, 32 dps, 0.9 speed
now im just wondering how an item with the same speed and base damage, and higher max damage would have lower dps?
A suggestion on how to calculate dps: (( base dmg + max dmg)/2)/ weapon speed
Just a suggestion, but i hope you can make dps calculation as accurate as possible.

EDIT: Nevermind this, it appears that i was looking at the wrong thing, I was reading the base weapon stats instead of the damage stats of your character, I am sorry if this caused any problems/confusion.