A hundred years of time, from the peak of third-rank combat power to growing into a demi-god level powerhouse, is that slow?
Not slow at all, just look at the Dragon Clan of Kamata. Those dragons that have lived for thousands of years have only reached the peak of the Legendary Realm at most.
In the game world, natives aren't like players, who can level up by killing monsters; they must improve their rank and strength step by step, without neglecting cultivation methods, realms, or experience—there are simply no shortcuts.
Reaching demi-god level status in a hundred years, even within the Imperial Sword Sect, is extraordinarily rare. Otherwise, the sect wouldn't have opened the door to recruiting players!
Guo Xiao was very tempted, but unfortunately, this is a secret realm, just a segment of elapsed time and years. It's impossible for him to join another sect here.