APM distributed traces are not giving the correct distributed timelines for high latency traces

APM distributed traces are not giving the correct distributed timelines for high latency traces.
Example:

Let's say 1st bar in the timeline is showing 4 sec.
Then under the first big bar the below bars not giving the exact timeline of of the trace. I am trying to sum up the below all the bars but it showing 15-16 milliseconds. Where as first bar is giving time of 4 sec. Please help.

FYI, I am new to ELK

From Elastic Observability to APM

Added ui

Can anyone please help me out..this is really high priority issue

Hi @Shravan1 Welcome to the community.

First this is a community forum with many users / questions etc.. there is no "timeline" for answering questions so please be patient.

2nd you are going to need to provide a lot more information if you want help

What version are you on?
What APM Agents / Languages / versions?
Screenshot of what you are seeing that show the question.
You have not provided enough information for anyone to help you.