Can't you just turn the motion blur all the way down in the settings?
EDIT: Apparently not, but is the motion blur REALLY that much of a problem for you? I HATE motion blur but I didn't even notice it was still here with how minor it is.
there's an option for motion blur in the settings i'm pretty sure, but post processing also causes motion blur if i'm not mistaken it's due to the way that the post processing works or something