Curved Treadmill

I am a fairly good runner, run at a 4:25km to 4:45km and can keep that up for 15-21km and slow days 5:00 flat per km what do you run at and how long for and how much does the OMA effect your pace and distance?

I would like to get stronger at running I just don’t like that noisy part of it, is it nosier than a normal motored treadmill?