Higher unsprung weight would be my first thoughts. Maybe a bit too much bounce felt at the wheel?
There is a school of thought that goes along the lines of imagining handling is a circle, in that whichever aspect is changed, it needs something else changing to keep the circle. All that ultimately happens is that the circle gets a larger diameter.
Personally speaking, I'm happy with the handling. I don't feel a pressing need to get around any corner a little quicker as I can scare myself quite well at the speed I drive at now!!
