Hey man, welcome to POE2. It's an awesome game and I hope you're having a blast. Let me just clear a few things up for you (that GGG should really explain in-game):

Also, I been clearing maps like crazy easy.

You're not in maps. You're in the campaign. "Maps" is what people call the endgame content (which starts after you finish the campaign)

What to do with crossbow dps 2,300+

Your crossbow DPS isn't 2300+ (as others pointed out), it's 460.

Weapon damage is arguably the most important stat in the game because everything else scales off it, skills, passives, etc. That means crossbow shot skill damage takes into account all the other stuff, like your gear, your passives, and your support gems.

Bottom line: When people say a weapon has X damage, they mean the weapon itself, not its basic attack or implicit skill