Freezing and lagging CarPlay over wireless connection

Tested with several different navigation apps, they all suffer the same problem.

Problem: CarPlay starts automatically, navigation starts, then freezes, then updates position maybe once every few minutes. Real-time navigation is not possible.

Did everything as instructed:

• vehicle OS, IPhone OS and apps are latest version as of november 2024
• Reset both IPhone and car
• Carplay set to start automatically
• Siri is on

Over a wired USB connection, CarPlay and navigation works fine.

IPhone 15 Pro Max

BYD Seal 2024

Any help, ideas are very much appreciated!