Android 11 complains about "serial console enabled"

Which system do you use? Android, Ubuntu, OOWOW or others?

Android 11 64bit from vim4-android-11-64bit-v220601.raw.img.xz

Which version of system do you use? Khadas official images, self built images, or others?

Official Image

Please describe your issue below:

Android complains about “reduced performance” for the serial console enabled.
How to disable it?

thank you

ignore it, that means the fw is build as userdebug you dont see any reduced performance from that.