Hi Shanmuk,
Regarding calculating the full round trip time delay from Client to Backend for each app in PCF, you can see in the GoRouter's logs under /var/vcap/sys/log/gorouter/access.log each transaction through PCF being logged, and it's response time. Is this what you're asking for?
Also, to get the Application Routes by Org & Space, you'll be limited to the commands available to the CAPI. See reference: https://v3-apidocs.cloudfoundry.org/version/3.60.0/index.html#resources
There's commands to list all apps, list all orgs, list all spaces, and list all routes for apps, however to get them to display as you've described will require some scripting on your part.
Please let me know if you have more questions on this.
Thanks!
-Ryan