Viewport Camera Control Issue In Windows 10
In Windows 7, I can utilize the viewport camera controls with my mouse just fine while doing an Iray viewport render. But in 10, they have a tendency to screw up (e.g. clicking and holding the zoom button causes it to immediately zoom in or out to an absurd degree, clicking on the pan camera option results in the view being flipped around, etc). Is this a known issue, and if so, is there a fix? Using the latest general release.

Comments
This is a known issue, some people find that clicking and holding in place for a few moments before moving will help. How nopticeable it is varies from system to system, and it can happen in Windows 7 too.
How long has it been a problem? And any idea if it's something that could/would be fixed?
You might like to view this thread. Some of the issues described might not be quite the same as yours but it looks like they are all related.
https://www.daz3d.com/forums/discussion/152156/jumping-viewport-problem-is-driving-me-insane-edit-solved-fix-on-page-1/p1
BTW, the "Solved" in the title is disputed. At best, there is possibly a workaround.