People get seasick on carnival cruise ships so hull design is more ride V stability at rest historically for trailer boats.
Keep your head up and don’t bend over to study the floor of the boat for too long
Try tablets, ginger, grazing anzac cookies and drinking water regularly while out. The more time on the water the more desensitised you will become to seasickness.
If it’s the wife that gets crook , then just tell her the bigger the better and get a lot more $$$$ for budget
Yes I haven’t helped much , but you could now get the boat you really want