I'm finding that in a Mojave guest in Parallels 15 the scrolling is not that smooth. It is chunky and accelerates really quickly. It's hard to read web pages and other documents because of the jerky and fast nature. It just doesn't feel like the normal macOS experience of a Magic Trackpad. This is on a Mojave host too. Is there a chance this will go away with Catalina? This really worries me because Mojave needs to be as smooth and buttery as possible with the disappearance of 32bit in Catalina! All graphical experiences need to be improved in Mojave guests!!!