Why is The Rise of Planet of the Apes 3: The Ultimate Battle not as high as the first two?

The most prominent feature of Caesar's role-building in the film is that he has always had a "Koba nightmare", but the design of this nightmare is also very puzzling. Koba is the representative of an "anti-human" orangutan. It is supposed that this nightmare should be a reflection of Caesar's deep-rooted "anti-human" violent tendency, but the film does not further explore the character and psychological shaping of this "anti-human" violent tendency. Caesar was also a dove who pursued pacifism. So at the end of the film, he just led the orangutan out of prison, not led the orangutan to take revenge on mankind. Only when the human army opened fire on the orangutan on the battlefield did he fire grenades to blow up the tanker and destroy the base in order to save his own kind. To sum up, the poor performance of the film in characterization leads to the incredible gap between the third episode and the first two episodes. Some people may say, why are there no other roles? Isn't there that little girl? The poisonous tongue gentleman also wants to ask, what is the value of this little girl besides selling cute? What kind of thinking can you provide? It is estimated that some people will say, isn't that talkative orangutan quite a drama snatcher? Poisonous tongue gentleman also wants to say that this talkative orangutan is not only funny as a clown, but also the value and significance of shaping the role of Mao. And human soldiers with crossbows. He is a human character whose scene is second only to that of a colonel and a little girl. It can also be seen that the film arranged for him to appear in many scenes, trying to shape this role. From his expression, it seems that people can see that he is not the cruel role of the colonel. However, the film finally gave up the role in the chaos and did not give enough scenes to refine, so that he eventually became a pure villain and shot a fatal arrow at Caesar at the end of the film.