Weapons are the worst because they require multiple +damage rolls to even be usable, it's the same reason why there really isn't money in crafting weapons whilst you can make a ton from crafting armor.
I think one of the things they could do is show more of the events on the map, most of them only show when you are in reasonably close proximity. What kind of happens now is that you clear all of the hearts in a zone and run through all of the related content you find, but when you come back to a zone you don't especially know where the action is at.
On the topic though, the game essentially encourages pseudo cooperation - the punishment is removed from helping people you arent really grouped with, but on the flipside everything is pretty zerg-derp.
Upto 31 with my warrior, whats massively frustrating is that multiple zones have 1 skill point guy that is broken. I have 2 zones 100% and 2 more that are completed excluding 1 skill point npc which is broken in each. Beta be beta.
Going to try to get a group for ascalon catacombs.
Edit - re: performance. Its better but still needs work.