Is attack speed not working properly or am I misunderstanding something?

[zachwildcat]

So I have flurry of blows level 2 and my stone axe I have here says I can do 75 attacks a minute but its painfully slow. When I switch to iron pickaxe, it states its 60 attacks a minute but its MUCH faster. Am I doing something wrong or is the flurry of blows not worth it until level 5? I swear before the official release I was attacking pretty fast with the stone axe with only level 2 flurry and now its still just as slow without flurry.