The application uses Yahoo finance to fetch the market information. It is generally delayed by 30 minutes for exchanges like AEX or other european exchanges.

What I generally do it query the endpoint in EURONEXT's portal https://live.euronext.com/en/intraday_chart/getDetailedQuote... directly to get the current stock information which is almost real time.

You can also track intraday price from EURONEXT via - https://live.euronext.com/intraday_chart/getChartData/FR0000...