He might be referring to the rounds themselves, as Native rounds often drag out longer then c-RPG rounds in my experience by a good minute or two. At least for me, it seems like a lot more things are going on in c-RPG rounds and thus seems faster.
Then again, that is a positive thing with this size of playerbase. Depending on the map, you will get different types of movements. I really like the ones where they don't all move in 1 group, but more splitted, and cav going to a cavfield. This way, there are little fights all around, but it's actually 1 battle.
I once knew a moment where i was in a group, encountering another group. It took some time, but we won with small casualities. Thinking we have won the battle, we walk around the corner to see a bigger group fighting leftovers from our team, dropping (atleast my) morale greatly. It's just one of those things.