Latency issues in proxy request flow

[muq_ash]

Hi,

I am accepting base64 encoded image in JSON payload. The payload size is 4.5 MB. However, the request is taking around a minute to be processed by Apigee. If the same request is sent to the target endpoint directly, the request is processed within milliseconds. Please refer to the screenshot below for details and advice how to mitigate the latency issues. Thanks.

Request format:
["base64encoded-image"]