I beg to differ. Especially if you take out the additional vampire arrows on the target. I never had an issue keeping up with the sea of S/R in Ch3. Chapter 4, I didn't do that bad until I stopped gearing it to gear my warrior. I don't have any numbers for proof but that's just my experience playing S/W.
Also, I think S/W is superior to S/R for the unbreakable combo shot and enhanced throat strike.