I got a strange bug!
As you can see, I have only swap the position of two modules and got two different “max speed” displayed. (In game they have exactly the same speed)
One module is the “Supercharged thruster”, the second is my “Subspace generator spé thruster”.
I think it’ because my special module is a modded thruster with stack penalty.
P.S; the strange colour are from the BMP => JPG conversion