Lag seems to affect other classes too, clerics for example some times dont cast the buffs/heals properly and get stuck in casting position around 3 or 4 sec being uncapable of moving (in middle of a fight) and not receiving the benefits of the buffs as if you haven’t cast it, so u have to try to cast it again…
Another annoying thing is that when someone dies, some times, the body slides on the floor to the infinite, and priests who want to resurrect them cant see where the body has fallen and they cant aim properly, being uncapable of resurrecting people.
I think all classes have problems with lag,… not only archer classes… 
I hope they fix this problems in the near future 