It’s not the sim will get 150FPS increase. Before it get confusing and starting later telling peoples all kind of word, the performance increase is related to aircraft simulation data now 5x faster target aimed to 10 later, and get out of the main thread, performance talk was on the avionic and aerodynamic engine page presentation, but this could help elsewhere, everything on aircraft is taken hit and adding more complexe data\system more it get hurt performance more and more.
Seb explained more data hurts performance and contents can hurts as well.
“Interview with Microsoft and Asobo Studio #flightsimexpo2023 - YouTube”