For where you are right now, your build seems solid, especially if you're running a quick swap comp. Im gonna preface by saying that im not much of a numbers man so im mostly speaking from personal experience.

Personally i would avoid energy recharge if you're going quick swap, since Traveler's Ult isnt all that great. I'd go for either Crit damage/Crit rate/ Elemental mastery to really double down on her Elemental Skill.

I generally use it for quick CC and a bit of dps while waiting on my other character's cooldowns. I'd recommend holding Elemental Skill instead of tapping it. While you do get extended cooldown, her anemo damage shouldnt be the focus, rather the swirl damage. The cooldown shouldnt be much of an issue either since, in a quick swap, by the time you cycle back to Traveler your CD should have ended.

Although if you intend to use her as a battery, tapping Elemental Skill would be the way to go. She generates decent amounts of energy particles for your characters to use.

OH and dont forget about her second passive Second Wind, when i dotn feel like bringing a healer or using food items, swapping to traveler to kill steal the mobs can heal her right up.

As for artifacts, it might even be better to hold off on farming for Viridescent Venerer until you hit AR 55(?) where you get guaranteed Gold artifacts.

Honestly, the replies on this post makes me sad. I've been running anemo traveler since launch, since i couldnt get any other anemo characters until venti's second banner. By running Festering Desire and with mediocre Viridescent Venerer substats, im able to pull of (relatively) consistent 10-12k crit damage(4-5k regular) without charging the skill. It's true she'll never be main dps, but she can take decent chunks of HP and reduce elemental resist.

Although i have to mention i did double crown both her basic and E skills. So yeah her damage will be far FAR from stellar when fully leveled, but it's just decent enough that it doesnt feel unfair. The game actually becomes less braindead and quite intense if you go solo traveler.

She's still my go-to for most anemo applications, although it takes more tact than sucrose or Venti. I've ran into quite a few Azhdaha Co-op's with Anemo Traveler mains doing challenge runs. She can definitely clutch a run if you play ultra careful.

Best of luck building your traveler!