Flythrough mode not working on MacOS

New to Unity. Can someone give me some hints on how to use Flythrough mode on the Mac? Doesn't really work. I've got a MacBook Pro. Using the "right click" on the trackpad (two fingers on the trackpad and one on the button) is so slow it's not usable. And tried an external 2-button logitech mouse and that's just as bad if not slower. Any ideas?

Thanks!!

Are you scaling everything way up? The flythrough speed is plenty fast enough around typical scales (that being 1 unit = 1 meter or so).