If your Philips iron comes with DynamIQ, this is its default setting. This setting will produce the right amount of steam automatically while the iron is moving. If you want less steam, please switch to the ECO mode. This will allow you to iron using less steam.
When your iron is set to Max steam, a powerful constant flow of steam is produced continuously for stubborn creases. If you want less steam, please switch to the DynamiQ or ECO mode.