Disabling Speed Boost

[hastened]

I have seen a few references to some type of setting or power than can be used to turn of the +movement speed aspect of speed boost, but I haven't been able to figure out how to do it.  Does anyone know if that is a thing that can be done, and if so how to do it?

[Adeon Hawkwood]

You need to talk to Null the Gull. They are a small seagull sitting on top of a truck in the villain side of Pocket D.