And reduced in numbers, if it's possible. I don't know what the minimum size of a cavalry unit could be for it to still matter on the field (ie. to it not getting simply smashed by numbers) but it needs comparative reduction...
Maybe even raise up the stats a bit, but lower the size? I've been experimenting with very small numbers - a 'Magic Potion Warriors' unit of 6 soldiers with super-high stats can safely survive against large enemy units.