3D pdfs and Acrobat DC

I am using a Mac running Catalina as an OS and am now using Acrobat Reader DC to view the 3D pdfs. I can’t figure out how to make the 3D image smaller so that the whole tooth image can be seen on the screen. In Acrobat Pro 9, I was able to resize using 2 fingers on the Magic Mouse. I can't seem to resize the 3D model using Acrobat DC. In addition, moving the 3D image on the screen in Acrobat DC is really choppy and doesn’t change directions smoothly. When I used Acrobat Pro 9 it worked perfectly but Acrobat Pro 9 is now unusable and is not supported. I have attached a screenshot of the 3D pdf file that I created. Any assistance would be appreciated.