Lower confidence score in Azure Cognitive Services Face API via Outsystems

We are trying to develop a face detection app in Outsystems 11.8 and using the demo app "Azure Congnitive Services Sample" to test the functionality.

While comparing two images of same person, the confidence score in Outsystems demo app is much lower (79%) compared to a direct demo in Azure Face API Demo page (95%). 

Link for direct demo is https://azure.microsoft.com/en-gb/services/cognitive-services/face/#demo

Could this be due to the API defaulting to older detection model 01  ? Is it possible to override this to latest improved detection model_02 ?

Thanks for your time on this query.