question about the new video

[Dawntilldusc]

I noticed during the video with the egg (Which was hilarious by the way), that it seemed to speed up the longer it was in turbo. Or at least boosted after a short time.
Now, I may have just imagined it, having watched it at 2 o'clock in the morning, but it was fascinating none-the-less.
It caught my attention because the longer you stay in turbo the faster you get is an amazing idea. To a extent that is.

I'd appreciate any elucidation or comments on the subject.
Thanks,
Dawntilldusc.

 

[KYnetiK]

Holding turbo while swooping does a boosted swoop, accompanied with a 'sonic boom' effect and FOV distortion (hard to tell on dark background). Also, the egg went SSJ at some point, so its speed stats would have increased.