these literally the same numbers op gets on average , the problem isnt the story the "problem" if u consider it a problem is that oda takes more break thus less volumes per year thus less sales (2019 had 4 volumes compared to 2020 had 2 volumes and 2021 had only 1 for most of it)
the "solution" in this case is to overwork Oda and make him go back to 4 volumes per year which's too much .... I would rather keep Oda healthy and let him work on a reasonable pace than that
I dont agree. İn my opinion problem is not how hard Oda works. There's a general low quality to the OP. This is real . If you look at MF's sales figures, you'll see that it sells a lot. Because there were big characters, big fights. Because there was the realization of the expectations of the emperor and admiral formed by the Oda. People want to see it now. Not every arc is a simple repetitive story. Wano has 100 episodes so far. At least half of it consists of unnecessary episodes that will not affect the rest of the series. We are in an arc where one emperor will descend, but in such an important arc we read characters that have no effect on the series. Stuff like this overwhelms the reader. For 20 years, people have been waiting for emperor fights, for the New World. Unfortunately, Oda did not meet these expectations. This kind of thing also caused the reader to slowly abandon the OP.
-Drawing off panel the big fights people have been waiting for like WB and Roger.
-Saying the New World is a very scary place and making it an easier world out of Grand Line.
-Inability to create an expectation on the emperors and turn it into reality like Big Mom.
-Repetitive arcs
-Constantly creating mysteries but not explaining them.
This list can goes
You can't keep people in a series for 20 years just by creating anticipation and mystery. At some point you have to give these expectations and mysteries to the reader.