. Keeping this updated (sourced specifically from your reseller) can fix audio glitches and camera lag
: Sites like Joying's Update Blog provide official builds. Note that some updates are "one-way"—once you upgrade to versions like the May 2023 build, you may not be able to downgrade.
The Zlink or CarLink apps used for phone mirroring are notoriously finicky. Firmware updates often include newer drivers for the Wi-Fi/Bluetooth chip, leading to and significantly less lag when using Wireless Android Auto or CarPlay. How to Find "Better" Firmware
If you’ve stepped into the world of Android head units, you know the Unisoc UIS7862