I wish they would just cap the servers at 70.  That's the mark where I start noticing that the feint timing is off.  You can still feint, you just have to slow down your button clicks, but it sucks.  
I'm sword and board and when I fight a good 2 handed blocker, feinting is essential to open them up...trading blows back and forth just destroys my shield putting me at a big disadvantage.
I've also noticed that sometimes my swings don't seem to connect even though I am well within range of my opponent.