Looking at buying a 2019 AVX 2080 with 200 Merc. Motor has 140hrs. Owner says he gets about 55mph with 2 people. That’s about 10mph slower than it should be getting. A friend/dealer says be careful, something could wrong. Thoughts on where the speed loss could be or if I need to be looking for a problem. Hull is a new replacement from Vexus, so no issues with the hull...got to be on the motor or set up. Does have manual jackplate.