>>64133457
Around minute 35
https://www.youtube.com/watch?v=Enff_CVSoC0
https://ww2aircraft.net/forum/threads/tropical-performance-of-hurricane-and-spitfire.63348/
Engines like the Merlin or DB601 were optimized for the European theater, as soon as England operated them at higher temperature the performance would be 20-40% worse (less air density, less cooling available/more drag for cooling, less boost pressure below critical altitude).

In the Pacific the Spitfire had less engine power than a Zero below 4 km because those 2 planes were optimized for different operating conditions, so comparing a Pacific Zero with an European Bf109 is beyond retarded.