WPA2/WPA3 Mix mode (混合模式) potential performance issue

To resolve this issue, there are workaround to keep one SSID use WPA2 for old device and one SSID use WPA3 for supported device.

Reference:

https://help.keenetic.com/hc/en-us/articles/360014406080-What-can-cause-speed-degradation-on-some-mobile-clients-when-operating-in-mixed-mode-WPA2-WPA3-