ESP32-S3 wifi traffic tests

[lhjhit]

I ported the Zephyr operating system to the ESP32-S3 DevKitC development board and then used iperf to run traffic tests. I found that the Wi-Fi throughput rate is only 4 Mbps. Does this meet expectations?
ESP32-S3 works as AP.

PS: Here are several key parameter configurations.
CONFIG_NET_BUF_DATA_SIZE=1500
CONFIG_NET_BUF_RX_COUNT=30
CONFIG_NET_BUF_TX_COUNT=30
CONFIG_NET_TX_STACK_SIZE=4096
CONFIG_NET_RX_STACK_SIZE=4096