The light is said to have left this galaxy some 500 million years after the big bang – fine.
The galaxy therefore must have been no further than 500 million light years from the point of the big bang since it could not have traveled faster than the speed of light (according to the theory of relativity).

Assuming that the galaxy moved in a direction diametrically opposite to the direction that “we” moved after the big bang, “we” would be 13.2-0.5=12.7 billion light years from the point where Big Bang occurred (assuming that it did indeed occur at a single point).

Now, since the Big Bang occurred 13.7 billion years ago & happened at a point 12.7 billion light years away, “we” would have to have traveled a minimum of 12.7 billion light years in “our” 13.7 billion year existence.

“Our” average speed for this “flight” would have to be some 93% of the speed of light !!!!

So, is it really true that “we” have been traveling at an average speed of 93% of the speed of light since the Big Bang ?
Or is there some other explanation for this anomaly ?