Siri does not work well on the iPhone 16 Pro

Siri does not work well on the iPhone 16 Pro for some reason. I got a new phone. I have retrained Siri multiple times. Sometimes, she never answers. Other times, she stops listening and turns off partway through my question. I rarely can get a question answered. Siri on this new phone is worthless. Any suggestions on how to fix it? Or, does Apple need to fix Siri on the iPhone 16?

[Re-Titled by Moderator]