I got a Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01) and the connection is really slow.
I tried with 'sudo modprobe -v ath9k nohwcrypt=1' but it didn't solve the problem
So I booted an ubuntu live and, bam, full speed.
FIrst think I tried? install ubuntu kernel into deepin, but it didn't work, still slow.
I suspect ubuntu either blacklists another conflicting module or enables some particular option.
Can anyone suggests how to dig this ?

thanks