This isn't a disparity in cultivation, but a disparity in authenticity.
The sun and moon in Chen Shi's Daoist Field appear more authentic, as if the mountains, rivers, and lakes were meant to exist that way. In contrast, the Void Great Realm of the Xu Family in Lingzhou seems lackluster, and any astute observer can tell that Chen Shi's expertise is superior.
Xu She immediately noticed something amiss, withdrew his Primordial Spirit, and said deeply, "He's here to lay siege and tarnish the reputation of the Xu Family!"
Xu Yinglong nodded gently and said, "Did you notice the Furong Tree shaded by his Daoist Field is blooming?"
Xu She was slightly taken aback, then again summoned his Primordial Spirit and gazed downward. Indeed, many Furong flowers on the tree tied to the wooden cart were slowly blooming.