Two problems.
First is that by the 6th day of creation, time has slowed down considerably.
But beyond that, from Adam’s perspective, time was flowing no differently that it would seem to us.
To the people traveling at or near the speed of light, time seems to be passing normally for them as it does for us, while we would seem to be moving at super high speed. From our perspective, they would be moving exceedingly slow.
But within each framework, time would seem to be passing normally.
So six days from God’s perspective would be and seem like six days. It’s from OUR perspective that great amounts of time have passed.
I don’t have any problem with “perspective time measurement” explanations here. From a sufficiently swiftly moving perspective, you can fit billions of stationary years into a “24 hour day” of the moving entity.
It’s trying to apply it to the static situation that creates problems. Perhaps the “scientific” answer will remain so buried in mystery that we won’t know this side of glory. Metaphysics was not necessarily the same and that also knocks the footing out from under any attempt to do science. The bible perspective elsewhere seems to be for God to allow more time when something needs it, rather than for God to impart “bat out of hell” speeds to human activities.