HIGH
Connection parameter update - Request a high priority, low latency connection. An application should only request high priority connection parameters to transfer large amounts of data over LE quickly. Once the transfer is complete, the application should request BALANCED connection parameters to reduce energy use.
Interval: 11.25 - 15 ms (Android 6+) or 7.5 - 10 ms (Android 4.3 - 5.1), latency: 0, supervision timeout: 5 sec (Android 8+) or 20 sec (before).