If the center display's response is slow, it might help to restart the display. A restart may also fix the problem if you are experiencing issues with e.g. Bluetooth, navigation or connectivity.
Google has a support site for the Google apps and services that are built into your vehicle. You can also find a complete list of Google apps available to your region.
If you are experiencing issues with Google services in your vehicle, you can send feedback and detailed information directly from the center display.