So, after 7.1 was released I decided even though I wouldn’t be able to keep my save (which ALWAYS happens 
) I figured to enjoy some new features. Then as I walked it was like walking next to a burning building in 0.6. How come in 0.6 I was running like a madman and now I have anvils for shoes? I haven’t played any more of 7.1, but some help would be nice.
Dev are aware of this and some discution already done about that, not sure about the ending. It happen to me too.
Like this :
smf.cataclysmdda.com/index.php?topic=2330.49
they is more post about this if you manage to find them, in some discution thread.