You will not have that much wind.
Your mini-suite should have an open balcony, and isn't facing foward, where the highest winds are.
Your cabin is behind the pilot house which has enclosed bridge wings, which will block most of the winds.
If you enjoy soaking in a bath tub vs showering, you'll think the mini-suite is worth the higher fares.
Stop worrying, and have a great cruise to the Mexican Riveria.