PPT Experience in Mobile

I'm wondering if anyone can tell me a good way to publish PPT materials in Captivate Prime so that the PPT still looks and functions correctly? I've tried publishing straight to CP, converting to SCORM 1.2 through iSpring Converter and no matter my settings, the slides appear small with large black borders around them. The slides are also interactive, and often the buttons lose functionality or are severely delayed before responding.

Is there a better converter that I should use besides iSpring? Or is the mobile experience still unwieldy and not an ideal solution? Or is PPT just not mobile-friendly?

I could be a dunce, too, so I'm not ruling that out.