Disabling Mud Mod

[Cabre_01]

Recently I downloaded Selby Farm Estates from FS-UK and I really like the map. Mud Mod though I do not like. The game lagged badly every time I went through mud and that I found it unrealistic at times where the weather would be nice for a couple of days and there is mud everywhere. If it rained and there was mud everywhere, I would be fine with it. But anyways, I am wondering if there is anyway to disable mud mod? Thanks!