What are your computer specs.
Version 10 needs to have its project set up manually in order for you to be able to play and edit your video. There was also no real support then for 1080p60 or 1080p30 video in version 10.
Which format did you shoot your video in? Your camcorder shoots in several resolutions and frame rates.
When you started your version 10 project, which project presets did you select?
This video will be infinitely easier to work with in version 11 or later, which is much more compatible with these video formats and frame rates. I think version 10 is always going to be a struggle with it.
Though, as Ann says, the speed of your processor will also play a factor.
If PE10 is not optimize for these kind of footage, processor power wont be much help.
I've got an fx-8320 and 8gb ram