Well, there were derated 190's in combat then?????
Anyway, Typhoon pilots sometimes states they did not worry about the German planes catcing up with them.
A P51 Pilot said that Typhoon, Spit XIV's and especially Tempests were really faster than his P51, which however was quick enough to catch 190's and 109's
Also, I have heard of rocket-carrying Typhoons with no guns at all, just for the sheer speed. They did not have to worry about bring intercepted en route, just to get bounced when getting away. With light load = uninterceptable.
Any more data ???