I'm actually shocked how big the gap in strength between Luffy and Zoro is. Maybe Zoro really is much closer to Sanji than we all thought.
It's still two sword Zoro, with no bandana or advanced conqueror's haki
Of course Lucci can hold his own against him. Lucci could actually compete with G5 on physical power and advanced armament haki, he just got rolled eventually due to massive gap in CQC and even then he was fine after few minutes.
Two sword Zoro without bandana or advanced conqueror's isn't taking down Lucci.
And anyway, obviously Luffy is considerably stronger than Zoro currently. But if you think it will last on, well it will be like those who thought the same after Luffy vs Katakuri, and then rooftop happened.
Oda will keep switching it up, Zoro is meant to be ambiguously between Luffy and Sanji, as plot demands. Sometimes he's closer to Luffy, sometimes he's closer to Sanji