BLE throughput speed

We are trying to send data over BLE and wanted to set the PHY2M = y and DLE=y in proj.conf. We are using nrf connect sdk 4 with Zephyr 1.14.1 that is used in (nrf connect 1.9.1).

But the data with DLE=y and PHY2M=y is same as before. Can you check the proj.conf if it is correct?