BLE master notification speed?

[JonathanChenNew]

Hi
Send notification with the function: esp_ble_gatts_send_indicatte() ,and 'need_confirm' is false.
I have to delay 10ms between notifications.So the speed is about 2KB/s.
and esp32 reports err when the delay is 5ms;

[kolban]

What is the error message reported by the ESP32?

[JonathanChenNew]

What is the error message reported by the ESP32?

message:
[0;31mE (144677) BT: L2CAP - CID: 0x0004 cannot send, already congested
xmit_hold_q.count: 201 buff_quota: 200[0m
[0;31mE (144677) BT: ATT failed to pass msg:0x1b to L2CAP[0m