720p 60fps playing in slow motion need real time speed?
The reason it plays back in slow-motion is because you recorded it in slow-motion mode. From Kodak's web page (my emphasis):


  720p at 60 fps—for fast action and super slow motion playback 


Your computer have no problem playing back the video if CPU usage is just 30% and have a full frame rate of 60 fps.

What you need to change this is to re-time your video.

You can do is in many ways - I would suggest a video editor such as Adobe Premier Pro (try their 30 days free trial if you don't have it already), select a project that fits the format (HD720P) but with 30 fps.

Then drop your video on the time line, right-click and select change playback speed (or something in those words). Set 200% or what will suit your video. Render out to final video and the problem will be gone.