Remember, the distances are different.
If the satellites were closer to the Earth (contained within the Earth's atmosphere) that what we're told they are, then the calculated speed would be higher the closer the satellites (stratallites) are to the Earth's surface.
You're assuming that they are where we're told they are.
Actually, it makes no difference as to the distance from the observer to the "Satellite" on a FE. As we know the time it takes for a Satellite, like the ISS to make one orbit, then we can work out the distance it has to travel.
If the Earth is flat, this distance is the same as if tit was 5 mile up or 5,000 miles up. So the distance to the Satellite is irrelevant for a FE. It is only relevant for a
Round Earth.
ISS orbit time: ~90 minutes
Distance around the FE Equator: ~156,451
Speed of ISS of a FE: ~104,300 miles per hour

It
has to be that fast to make it around the equatorial distance in that time.
However, if you track it, then you will find that it is not moving due East/West, but at a rough angle. In other words, for the ISS to exist on a FE, it must be making a Zig Zag Pattern which would not only increase the distance but require it to accelerate and decelerate all the time (however, on a RE, this is explained by having the orbit not precisely an equatorial orbit and the Earth being round).
As the ISS is not the only satellite to have a similar orbit time or distance, then you can pick whatever one you like to make actual observations on.
Also, as we know the speed of the ISS, and we can track it across the visible sky (with our eyes even) and time it (it is around 10 minutes), we can actually work out its height compared to us (it takes some fairly complicated geometry, but I'll leave that for you to do as it is not important for this rebuttal).
the fact is, any "satellite" that exists on a FE has to move a certain distance in a certain time regardless of its height or there actually being an observer. Using this we can work out how fast it
has to travel, and this is so fast that it exceeds, many many times, the speed of sound. Not only that, if we factor in the amount of heat generated by friction with the air, then it should burn up any material in seconds (you can track it for longer than a few seconds, and don't see it as a fiery trail through the atmosphere). This means that Psudolites or Stratelites can not explain what we call Satellites.
That only leaves Projectors, but as no projector can project a silhouette, and as observations of Satellites can be seen crossing bright objects (like the moon or sun), then we can discount projectors too.
This leaves absolutely nothing in FET to account for Satellites. That is right, nothing. THere is no way that FET has been able to explain observations of satellites.
As direct observation (that FEers can do for themselves) show that Satellites exist and are not faked, this means that NASA is not faking these and these can be confirmed to exist. As nothing in FE can account for them, and RE can, this mean that RET is a better theory than FET and so one can no longer state that FET is a default because there are things that can not exist if FET is true (ie Satellites).
Now, of course, this does not prove that RET is true, it just means that the current FET
HAS to be wrong about NASA faking Satellites.
Therefore: Satellites do exist, that Sustained Space flight is possible and NASA is not as suspect as before (yes they could still be faking stuf, but it seems less likely now).