Not if you're moving along they don't. Same applies to most so-called "stinkie" boats moving at anything more than 15 knots. Whereas raggies get smokified with the engines on. However, there is a bit of blow-back with eddy currents: if you run for many hours in a flybridge boat, shut the patio doors.
Although these boats are built in Taiwan, albeit under some level of Brit supervision (apparently), Tarquin have been very successful in selling them in the UK. As to whether they're any good, they're not to my taste but they are very big inside; they have semi displacement hulls so any speeds above 20knots will need big engines and loadsafuel. I can testify that they are also very wet boats, they throw a lot of spray onto the flybridge even in moderate conditions
They're not remotely comparable, are they? I assume we're talking a Bav motorboat not a yacht. Obviously, they are much larger inside, big enough to live on for months, but, if you're used to the acceleration and speed of a sports cruiser, you're gonna find the somewhat stately performance of a Trader a mite underwhelming like they really struggle to get 20 knots unless they've got monster engines and the fuel consumption will make your eyes water. Best thing you could do is arrange a test run with Tarquin or, better, charter one for the day
A more logical progression from a Bav 34 would be a flybridge cruiser from the likes of Fairline, Princess or Sealine. You'd get more space albeit not as much as a Trader but you'd still get close to 30 knot performance
Why didnt you say it was a sailboat?? Well even a Trader is going to be a whole lot faster than a Bav 34 sailboat. As previously posted they roll a bit in a beam sea but they're absolutely ideal for patio tea parties in a marina especially with the optional hard top