Lots of misconceptions circulating yet about cruise speeds and adverse yaw.
I ran into those questions at the Kitfox booth at Oshkosh yet this year.
Most attributable to the Models 1,2 & 3’s. Of course the adverse yaw issue was solved with the model 4’s and newer model’s redesigned control mixer along with larger tail control surfaces.
The speed questions likely relate back to earlier models and some early model 4’s equipped with 2 stroke engines. If you are not cruising at 105 to 110 mph or better in a model 4 with a Rotax 80 hp and up, something is amiss.