Are there additional details you can share? The info so far is a bit…sparse. We know 3 things: a PUT, a GET and “perception is the GET is slow”. But we know nothing of the configuration. How slow is slow. What/where the native app is. What network infrastructure is between them. What happens when called directly without the gateway.
There are many, many things to consider. If you can provide details, without exposing any sensitive info of course, that will help the community give more helpful feedback rather than pure speculation about what might be the cause.
#webMethods#API-Management#API-Gateway