Board Thread:General Discussion/@comment-2055856-20160512183640/@comment-679780-20160630194619

If you want to see for yourself Sonic's speed then heres a link.

Now, given Dr. Robotnik has a planets worth of Christmas gifts in his fortress, it could be possible that AoSTH Mobius is smaller than the other versions of Mobius. Pre-SGW Mobius is confirmed to be Earth in the distant future while StC Mobius size is never confirmed.

AoSTH Mobius being big enough to have a few large continents like America or Europe would explain how AoSTH Sonic appears faster than most other Sonics.