Real stall speed of Discus CS

Hi,

i just made my first flights with my new glider: Discus CS.
I've never flown a Discus before.
One thing i recognized was the hight stall speed.
I wonder if this could be normal, so i'm interested in your
experiences with this ship.

I flew the glider without water.

With 45 knots i got some warning and with 40 knots i stalled.
(In the manual they talk about 35 knots).

In thermals i have to fly at min.48 better 51 knots.

Even on landing i had to be real fast for my feelings.

Any suggestions ?

Thanks
Hans