X-plane is probably a touch aggressive, but at the same time an A model doesn’t have a huge amount of thrust and would also have been given a hit of de-ice fluid before departure.
At 2000ft it should climb still, dare say xp gave you severe icing which a saab can only escape from, not hang around in. That screen shot the speed is below minimum clean ice, so it probably would stall at that point IRL.
You want to be 160 kts and use IAS mode for a climb in ice.