Once again, if you can't provide a scan, then I'm not sure how you can prove such. Each race uses reiatsu in a fundamentally different way, so each has different techniques for movement speed.
Being faster than the eye does not meaen a speed amp. Otherwise, any movement of subsonic or faster would be a speed amp. This is simply not the case. A speed amp is an increase in speed. Thus far, with what you all have shown me, Shunpo, Sonido, Hirenkyaku, and Light Bringers are specific movement skills that allow for potentially faster movement. If walking is 1 m/s, then this movement skill is, say, 10 m/s. But it's not an amp to their speed. Their speed is scaled to their reactions, and there's no evidence that has been provided that says that Shunpo is significantly faster than their reactions.
It's like the difference between walking and running. One is simply a technique that allows the user to move faster, but does not amp their speed, it's simply more efficient at the movement itself. Shunpo doesn't inherently increase speed but rather, decreases the number of steps taken to get from point A to point B. If there are no scans proving otherwise, then the arguments are invalid.