Hi Srikanth.  Are you sure that you're using tabjolt for the right purpose?  If so, it's fine, but I want to verify because I think of it differently.  I think of tabjolt as a utility to run on an infrequent basis during the planning / design / tuning / sizing of your deployment and it's used to measure available capacity by running a load test that creates simulated concurrent user load.  Typically we run tabjolt maybe twice a year as part of our upgrade cycle in order to measure if there is any massive change in capacity that we may need to react.  Have you looked at the built-in admin stat reports that show performance numbers, or have you looked at tabmon yet which is able to capture more detailed performance?

What is the requirement?  If it's to measure rendering performance of a specific workbook over time, then the built-in report "stat for load times" may suffice.  Within here, you can choose the specific view that you want to see in terms of performance.

Yep.  The stats for load times can show trends, have you looked at it yet?

Here's an example from my on-premise deployment.

Also, if you are experiencing 5 minute rendering typically, then this is way too long.  You should have a look at the performance recording to see what is going astray.  Create a Performance Recording .  If it's enabled for your server, all you have to do is add ?:record_performance-yes to the end of your URL.  And it will generate a performance recording workbook that shows the time durations for each phase of rendering.

If the requirement is inflexible, then there may not be anyway to improve, just because what you explain is more so a data dump, and Tableau is really good at providing visual dashboards to make metrics jump off of the page.  You can have a look at "best practices" for more info.

Best Practices for Effective Dashboards

Designing Efficient Workbooks | Tableau Software

Specifically as to what Tabjolt is:

TabJolt is a “point-and-run” load and performance testing tool.

Tabjolt:  The introduction, please read it.

Tabjolt in Github.

Some help for Tabmon, what you probably need to be using:

Russell C. explains TabMon -- or, my blog-post-so-I-won't-forget-about-this-and-also-make-it-easier-for-others-to-find-this-great-video blog post.

Tabmon in Github.

I currently use the method in the Tableau Server Admin guide:

Performance Monitoring Overview