How can I create slides/content without so much movement with my Apple Magic Mouse?

For some reason now, when I'm creating slides within Captivate 2017 version 10.0.0.192, the slides move all around the place with my Apple Magic Mouse. It's so difficult to get the slide to stop from moving about and to get items like adding shapes, highlight boxes, text boxes to go where I need them. I spend so much more time trying to stabilize the slides and items. I don't know why it does this. I didn't do this on other versions. I do have a newer computer and mouse too. You would think improved technology would be better but this is worse. Any ideas how to fix this? I would hate to hard line my computer mouse just for this program.

Thanks,