Turn off velocity in launchkey keyboard

Hi

I'm using a Novation launchkey keyboard to play the Arturia ISEM app. When I press a key it doesn't trigger the sound until the key is almost halfway down. My thought is that if I could turn off velocity on the keyboard it would trigger the notes better. I linked up the Launchkey keyboard and the app with Midibridge but I don't know how to turn off velocity In Midibridge. Do you know if this is possible?

thanks

andrew