Is Sunblessed better then Sentinel now?

Sunblessed has a speed of .9 where as megablaster and Sentinel has a 1.0

If you do the math a fight that lasts 10 seconds, Sunblessed damage is 150-200
(.9 speed compared to 1 speed.) The Sentinel's damage is 130-175 as seen below.

In a 10 second fight we are talking about 1500 damage (min Sunblessed) to 1300 (min Sentinel)... Of course the Sentinel shotgun DOES has a small range advantage as well as 6 more Crit points. How many crits do we get in 10 seconds?