I was thinking that the horse of the artillery in the Mount and Blade: Napoleonic Wars that they are too slow. Yes I know that the cannons were very heavy, but, it seems very exaggerated.
Then I thought that you could put two kinds of artillery. One mounted and one on foot.
The mounted horse could had more speed, but less shooting distance. Or something like that.
I don't know, it's only a opinion think about it ^^
PS: Sorry for my English :S
Captain of the 7º Regiment Mounted of Artillery "Brigade Maniobrera"