3 seconds for web service to call another web service

Greetings All,
I am curious as to why a PowerBuilder WebService, written in PB12.5, calling any other webservice (PowerBuilder or otherwise), takes 3 seconds to connect.
Our PowerBuilder webservices, when called either from external sources, or from internal applications, connect almost instantly, and execute quickly. But if we have a webservice, that then tries to call any other webservice, that call takes 3 seconds (minimum time) to call.
Example:
Application -> Webservice to send an email (PB12.5) – sub-second response time
Application -> webservice (PB12.5) -> Webservice to send an email (PB12.5) – The webservice to webservice call takes 3 seconds. The email webservice is the same webservice in both cases.
PowerBuilder webservices are dot net webservices. (Deployed as .net, not written as .net).
Thanks for any insights!!
Paul

Hello Paul,
If you have a valid S-user id, you can follow these steps to get the PowerBuilder Release Notes:
Go to https://support.sap.com
In the "Search for SAP Notes, Knowledge Base Articles and more", enter keywords "PowerBuilder release notes"
Currently, you should get 12 hits, such as "PowerBuilder and InfoMaker 12.5 SP02 PL06 (build 5652) Release Notes Information"
Click the link and you will see the bug list in this SAP note
HTH
Jacob

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