Yup they all do that with the deep V hull it's called hunting/wandering and there is nothing you can do about it, the only thing that helps a little bit is too speed up, but watch your wake.
Check out this article for complete details.
There is certainly something you can do to minimize the wander. My 2008 Bayliner 192 Cuddy did this too. I installed Smart Tabs and the problem was lessened 90%. Everyone who installs tabs on a boat this size has the same results. Go on the bayliner Owners Club webpage and do a search for Smart Tabs.