I am doing a Fury WT right now, currently in a4 nm.
I have issues getting AR since I don't put any stat points in dex.
I personally find that getting +AR on items helps a ton. I even save charms if they just have some AR, even tho they are shit normally. AR on your weapon is usually the biggest source tho.
However attack speed is usually better to prioritize imo, but it's rather easy to max out - so then just go back to massing AR again
More important than AR and attack speed however, is that just like Zeal, a chain of fury attacks seem to all miss if the first hit misses due to the enemy being too far away, even if that same enemy walks in closer during the attacks. I haven't done any research on this, but just an observation... I think SHIFT attacking could be responsible for this