Torque is simply a result of power divided by propeller rpm. The Fw had a prop reduction gear ratio of 1:1.85 = 0.54 with engine rpm 2700, the Spitfire IX a ratio of 0.477 with engine rpm of 3000. This puts the prop at 1458rpm on the Fw, and 1431rpm on the Spitfire. Engine power output of the Fw is higher at low altitude, but somewhat lower at medium and high altitude, and, given the very similar rpm, torque is going to be the same.
However, torque isn't the real problem, the gyro effect of the spinning prop disc is a bigger one. Torque is something you can trim your aircraft for and then can pretty much forget about, but gyro effects are something you'll notice every time you maneuver the aircraft.
To estimate the gyro effects, you'd need prop speed, diameter and weight, which I don't know where to look up from the top of my head, so I'll skip this one, but I doubt there'll be a huge difference.
One of the relative strengths of the Fw compared to the Spitfire were the very well balanced controls, which made handling easier and smoother. This is also a feature that definitely is present in game.
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