This may be an obvious observation but I read literary fiction much slower than commercial fiction. Based on an exercise I read about on the yingleyangle blog (which has amazing advice for writers) I've been comparing the layouts of the pages and evidently literary fiction has long chunks of narrative without dialogue, whereas commercial fiction is mostly dialogue with the odd paragraph of narrative.
Now, in the report on my novel I was told I used too much narrative so I set out to splash it with dialogue, but there came a moment where the dialogue was flooding the pages and I was loosing my voice. I like narrative, I know too much makes it boring -I often skip it in books when there's too much-, but a balanced amount helps the reader visualize the scene and actions in detail and immerse oneself in the plot.
My point is, I think there is a tendency to include more dialogue to the detriment of narrative, but then literary fiction enjoys greater prestige among literary critics so, in theory, this is what we should be aiming at if we want to become "proper writers". Here I'm being sarcastic because I don't believe literary is better than commercial, just different styles for different tastes and different storylines.
I believe our voice will determine the right balance between dialogue and narrative but it will also depend on the genre we're writing and the audience we're targeting.
Do you find narrative makes books too slow and tedious? And do you feel the pace of books with barely any descriptions is too fast?