In FreeRTOS_TCP_4.0.0 facing spurious retransmission while running awe tuning tool

Please check the priorities of the various tasks in the system and ensure that the tasks handling TCP traffic are nopt starved .
A reference to the reply for slow rate in 3.0.0 is at: In FreeRTOS_TCP_3.0.0 TCP/IP stack facing slower communication while running AWE tuning interface - #20 by aggarg