Greetings Catoandre,
It sounds as though you're having issues with video quality or experiencing slower performance on your iPhone 13 Pro. To confirm, are you noticing this issue when connected to your cellular data network, a Wi-Fi network, or both? If you're having issues when connected to your cellular data network, you'll want to walk through the steps listed below. You can also find more information about these steps in the following article.
- "Check your network conditions"
- "Close an app that's not responding"
- "Make sure you have enough storage"
- "Leave Low Power Mode off when you don't need it"
- "Keep your device from getting too hot or cold"
- "Look at your battery health"
About iOS or iPadOS performance on your iPhone, iPad, or iPod touch
If you continue to have issues after completing those steps, the issue may be related to the battery. You'll want to review the article below as it provides helpful information on how the battery can impact the performance, along with what steps to take for reaching a resolution.
iPhone Battery and Performance
Let us know how that goes!