The cat design is stable and fast in good times.
She must have water ballast to keep it upright in bad times.
I wonder if it has jets or screws.
One disadvantage of the ship’s design is instability in rough seas and at high speeds. At 10 knots in calm sea states, the hull can roll up to four degrees to each side, while conventional ships would roll very little, which would increase if the ship goes faster in rougher conditions, raising the possibility of seasickness.[7] To achieve its top speed, the ship has to be traveling in waters not exceeding sea state 3 (waves up to 1.25 m (4.1 ft) high). At sea state 4 it can travel up to 15 knots, travel only 5 knots in sea state 5, and has to hold position in any sea state higher; while this might be seen as an operational limitation that can delay its arrival to port facilities, the ship was intended to operate closer to shore rather than in blue-water conditions.
The vessel is powered by environmentally clean MTU Friedrichshafen engines running on ultra-low sulfur diesel using waterjet propulsion
Source for both posts: Wikipedia