ESP32 as TCP server sending Delayed ACK's

[kiran57]

I am using ESP-WROOM-32 DEV KIT in SOFTAP mode and linux PC in STA mode.
ESP32 runs tcp-server and linux pc runs as tcp-client and i'm seeing ESP32 adding some delay before sending ACK, but when i do the same using two linux PC's for server and client i didn't see any such delays.How to reduce this delay in ESP.
I am attaching screenshot of wireshark logs for reference
IP 172.31.0.1 - ESP32 server
IP 172.31.0.2 - Linux Client