Boats slow down to a crawl in the air

Whenever boats go airborne, their speed slows down to 0 within half a second, which it never used to do, and wasnt noted in the patch notes. im assuming it has something to do with the lead physics changes, but i cant say for certain. i would enjoy a fix for that because ive made lots of racetracks with boats and the airspeed makes it really difficult to make any kind of contraption that sends you up, or across a large gap. thank you in advance.