I think you're being unreasonably impatient when you expect them to just jump to the next major power stage in matter of weeks, as if it didn't take other people decades if not more. That'd be just silly level of player's ego stroking.
It seems to be a common sentiment for fans to question why we aren't instantly bulldozing everyone and leaving our competition in the dust. It isn't enough that we're within the top 2 of our generation, we also have to be able to beat everyone and everything without breaking a sweat. Not only that, but we also have to completely overtake Tang Ruo who's been training far longer, with better teachers, countless priceless artifacts, and has been juicing since they were a kid.
Personally, I like that not everyone can just be steamrolled. It enriches the world, provides stakes, and gives a sense of accomplishment whenever we actually fight and beat someone strong, like in the latest Boosty update.