The Longer Road - Irenicus' walking speed

Hello there,

I have installed that mod where you can recruit Irenicus in your team in order to redeem him.

Everything works fine, but his walking speed is soooo fast, it looks a bit weird.

So I'd like to know if there's a way to decrease his speed and if yes how ? I have EEKeeper but I don't know if something can be done here ... ?

Any help please !