How to plot and benchmark UDP response time?

Our application uses UDP protocol in the transport layer.

I'm currently filtering the packet trace with the port and then manually checking the RTT by selecting the packet stream and by using " Set time reference".

As shown in the picture, I'm currently evaluating the performance manually.

1. 3.47 rtt and 2. 3.7 rtt

I also tried to use the "Time delta from previous captured frame" in the Wireshark. However, Sometimes the application uses multiple sessions to send the complete payload.

What is the best and efficient way to benchmark and plot the UDP response time in an IO graph format?

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https://imgur.com/a/ZgIZIJb