The coffee is ground too finely.
Turn the grinding adjustment knob one click anticlockwise towards “7” while the coffee mill is in operation.
Continue one click at a time until coffee delivery is satisfactory.
Continue one click at a time until coffee delivery is satisfactory. The effect is only visible after delivering 2 coffees.
If after making at least 2 coffees delivery is still too slow, repeat the correction procedure, turning the grinding adjustment knob another click until delivery is correct.