Thank you for the feedback.
You are comparing different products believing each one is correct in their own flight modelling. Of course we can only attest to our own product and not other companies products.
We have carried out extensive testing, even after your initial feedback, on our P-40F and it is on the numbers based on data, but also from multiple real life pilot accounts.
We were very fortunate to be able to have access to flight crew and mechanics here in the UK during development and the most common answer is that no aircraft ever flies the same or even to the published numbers and there are so many factors to achieving top speed, fuel range, distance, etc.
We are confident we have this correct based on all feedback in the real world, not just flight manuals, and subsequently tailored as such for MSFS CFD technology.
However, we do appreciate your feedback to ensure we are making the highest quality products achievable.
Warm regards,
Ellise.