Thus, like everything else, this is subjective. The vast majority of writers abuse dialogue, never stopping to consider they are disproportionately accelerating the pace. Books can read too quickly. One good way of monitoring your dialogue is looking to see how much you use in relation to the rest of the text. In other words, if you have one page of description and then twenty pages of dialogue, there may be a problem.
Progression is slightly different than pacing.
It's possible to have good pacing and poor progression. If a feeling of progression is lacking, it may be due to lack of progression in the plot, the characterization, or in any number of ways. Perhaps you haven't started the book with a clearly defined end in mind, and thus are unsure to what event or culmination you're supposed to progress. If this is the case, the exercise at the end of this chapter should be of help. If this is your problem and you like taking your time, one way of solving this is to give the reader small points of progression along the way.