Data export process very slow

The fieldwork team has produced in the last 2 days almost 76k interviews (this number corresponds to 1% of the total goal) .

The problem we are facing is that the data export process in SuSo lasts up to 3 hours to generate the download link. We are using the API to request the export file.

Exporting data is not an instant process.
There a preparation preparing of data to produce final result. Usually there is no new data enter during the night and data may be processed in nighttime.
You might want to adjust your workflow and\or use API.