Mine isnt TERRIBLE, but its nowhere as smooth as my other pistols.
I took the mag release out, lightly polished the angled sections of the bar with 800 grit, then ever so slightly took a bit of the top angle off of the pivoting piece of the mag release.
I took a bit of grease and lubed it up too.
It works, but its still not as smooth/easy to actuate as I want.