I don't know what your setup is beyond a decent belt and Bloody bow (r99, r110?). Do you have any Skill CD rings? Are you +15 Dex? What Circlet, hair acc, gems, artifacts, talismans, skill enchants, forg skills, etc do you have?
Also comparing Yuls to an Evis in a very specific situation is highly misleading. Evis are the strongest single target class in game; no one disputes that. Up to a certain point they probably are superior to a Yul as far as PvE goes but, even that can be argued. I've never seen people shouting for an Evis for a Coal/BS/Beleth party; have you?
As far as swamp goes; great, an Evis/Maestro can single target there. I'm glad they can. Having said that; my CP is 6 people with only 2 DDs (archers) and in a small pit each member is getting 100t a session with JUST vit from cakes (200t/day). Why; AOE.......
I think it's pretty much a given that archers scale way, WAY better than any other class in game. Maybe at the lower end of the spectrum some classes can compete with them in some situations but as they advance they outpace everything.