I can't see the video, so I can't tell you for sure, but I'll try. Did you color correct it or add any sharpening? This is why I don't use Cinestyle, it really brings out the noise, especially at high ISO settings. By the time you get the footage back to normal it looks the same as it would have otherwise but with more noise. I use Neutral or Faithful, Sharpening 0, Contrast -3 or -4, Saturation -2 (also known as the "ProLost Flat" picture style). Also I'd shoot IPB over ALL-I, there have been tons of comparisons and you either can't see the difference between the two or the IPB looks slightly better in some cases. ALL-I is more edit friendly but the files are HUGE.
Also shutter speed should be 1/50, just thought I'd throw that out there.