The fact that with equivalent spec Merlins fitted,[like the Mustang]
the Mosquito was faster than the Spitfire, shows something.
The Vne of 450mph IAS <10kft
is only ~20mph less than the Spitfire & 109/190,
[but faster than P-38/USN types]
& that clean aero airframe allowed the
Mosquito to power on & evade most others if seen in time.
Ironically one of the few aircraft that could catch & kill the Mosquito
in a high speed tail chase was the Mustang, there are a number of recorded
incidents of this..
[ 8th AF `51 jocks awarded kill credits, even after gun-cam clearly show that their 'Me 410' - wasn't ], so the 8th AF painted their Mossie tails red..