Imported Armature and Bones

I imported the final sequence as an armature and in the display options I showed names, this will help to know what bones are moving. I need to get my mesh's armature to be a similar shape.

I imported the empties as well to see the correlation between bones and empties. There are 21, with the hand bases and feet bases seeming to do nothing (no keyframes)

For some reason it always seems to extend the length of the sequence when I import it into Blender, the sequence was 2.5 minutes long, whereas realistically it was no longer than 30 seconds. Changing the frames/second would not work because there was a maximum of 120fps. So I had to scale down the sequence using the NLA editor, this forced the Blender program to be INCREDIBLY slow and I had to wait up to 20 seconds after every click, button press. Being patient though stopped it crashing, and I scaled the sequence down to 20% - it now lasts 750 frames/30 seconds, which is far more sensible length! As soon as I took the NLA editor off Blender ran smoothly again.

Next I'll need to base my armature/mesh on to the imported one, and get the empties to follow...