Shiroh and Tamaki move faster than a flash of light

In chapter 4 of the Blazer Drive manga, Shiroh and Tamaki are shown to move some distance while a flash of light goes off to momentarily blind Beast

In a previous page we see the distance between the floors, which will be the distance both moved.

Assuming that the person we are pixel scaling is a female, the average height of a female is 160 centimeters or 1.6 meters

Female = 21 pixels = 1.6 meters

Now to measure the distance between floors

Distance = 217 pixels = 16.5 meters

All we do now is use the speed formula

Speed = Distance/Time

the speed of light is travels one meter in 1/299792458 of a second. The exact number being 0.00000000333564 seconds

16.5/0.00000000333564 = 4956570053.5229621102197279482598 m/s

or Mach 14,451,000

or 16.40312 ( FTL +)

Final Tally:

Shiroh and Tamaki semi casual speed is 16.40312 ( FTL +)

Seeing as how shiroh was injured and him being a superior blazer to Tamaki, plenty of characters in the series scale to this