I don't think that the new Breaking Bad episodes have been slow either. The parts that some would call slow are racked up with enough tension for me to think otherwise.
Yesterday I watched the first installment of this miniseries:
Wow, this ****'s incredible. I wasn't disappointed with any elements of the film, be it acting, historical accuracy (well, I took the film's word for it. It definitely did seem correct, though), and an exciting plot that isn't always too in your face with action, but there is still quite a bit of violence to be had. I'd highly recommend this one, I always end up kicking myself for letting recommendations like this slip.