There are factors at play in act2 that will have the majority of 200k DHs getting frustrated at their respawn counter increasing as they repeatedly die.
Too many mobs can jump you too quickly for you to respond. The gear required to become a surviving DH for act 2 would cost way too much, so your options are really just to do the best you can and be grateful each time you each a checkpoint.
That said, there are techniques that help. firstly- gear.
I see a lot of threads on here about best-in-slot etc. but no one talks about how to gear up on a real budget, i may make a thread about this later.
IAS: you want 15-17% from gloves, with the only other important stat being dex. 15% from rings, both with some dex (all 3 of these are very cheap).
Crit damage: get a bow with at least 60% crit damage, even if it means settling for a 800-900 dps weapon, again, these are practically free. Along with Archery this will give you enough crit damage to start fights with a barrage of high damage (using sharpshooter).
Movement speed: 12% on boots minimum. If you can find more then get it, but sticking with 12% + as much dex keeps it cheap.
Amulet: I'm a little undecided about this. Cheap amulets can give you crit damage, ias or dex. I can't say for sure which is best, but you can get a LOT of dex on a cheap amulet.
everything else: as much dex as reasonable, and where possible throw in some crit damage, crit chance and crowd control. I just find out what the (roughly) maximum dex on each peice is by looking at the 3m+ items and then lower that by about 10%. you usually have items come up very cheap. I'll filter for ones with crit damage or crit chance to see if any good deals come up, then I check to see if that item has 'chance to knockback/fear/freeze/immobalize' etc. If you have to sacrifice 15 dex to get a 3.5-4% chance to keep the mob back, It's worth it imo, especially at act 2.
With the approach above you can become pretty powerful with a decent dodge rating (handy to have a chance of surviving the arrow that you failed to get out of the way of). You'll probably use mostly blues or cheap yellows, but that's fine. If you have the cash to get better gear then do it!
This post has gotten longer than i planned- but the next technique that I found helped is simply using hungering arrow. Keep as far back from them as you can and just let the arrow find it's targets, even if they are off-screen. With a little 'chance to crowd control' and puncturing arrow, they often stay there quite a while and the distance gives you a chance to dodge even the faster projectiles. I still use this technique farming act 3 NV in the keep dungeon. fire a load of nether tentacles through the door and then follow up with a lot of hungering arrows that will go through the door and find a target that can't hit me.
I'll write up a detailed guide on this when i get home (about 11 hours from now /sigh), I feel the forums is lacking it.