Removing Speed Factor Limit

[JacKThERiPPeR]

I need help at this, because I'm making a tower in my TD that using the Slow Poison effect (so the creep doesn't attack the towers or goes mad), stops completely the movement of the unit. But the Speed Factor limit is quite disturbing. How I remove it?

 

[VGsatomi]

Slow poinson works on a percentage. If you want the creep to completely stop, set it to 100%.