Ok, started from cold/dark. I was seeing your picture as -9C, so that’s what I ran (old eyes!). Anyway, I ran startups from -9 to +9C to see what I would get. At +9, it normally gives me about 2350 RPM, and if I lean it some I can get just under 2400. At -9C I got a little under 2500 without significant leaning.
The leaning portion isn’t in the startup section (or didn’t use to be!), but is normally found under the section that addresses “leaning for ground operations” (or that’s what it used to be called). Anyway, in this case of the sim, it didn’t give too much more RPMs, so probably not a specific issue here.
Regards