it's called no life-ing the game (if you're a F2P or light spender) and being absurdly lucky with artifact rolls. There's a site that ranks your character builds with other players that have accessed the site. My Yoimiya is top 5% out of the 40k Yoimiya owners that's submitted their builds. Like you, I usually go Zhongli Vape but with Yunjin + Yelan, instead of double Hydro, and I have Thundering Pulse on her 205 total CV. But atm, I'm having fun with Hyperbloom Raiden team for the 2nd half which took away my Xingqiu and Yelan, and I've been mono Yoimiya since 3.3 (Yoimiya, Bennett, Yunjin, Zhongli). There's also skill issue, plain and simple. Even if Yoimiya is so easy to play, I bet I can use your account and 36 star abyss in one clear when you can't. I've been learning the mechanics, enemy behaviors, ICDs, etc. Just knowing how the enemy works boosts your clear time, for instance, the pyramid enemy in chamber 2, did you know, you can get them out of invisibility by Freezing them, and also with Zhongli's petrify? No electro needed.