I just purchased Cubase Pro 10 today. I have been using Cubase Pro 8 since its release, and its UI is fine. Cubase 10, however, has much smaller text and everything. I went through the preferences 3 times, found nothing that could help me scale the UI to my liking.
Unfortunately it’s impossible for me to work with C10 like this. I had to open the Magnifier (I’m using Windows 10) in order to see the menus, dialog boxes and other things. Scaling Windows elements bigger is not the answer.