Hello SimplePlanes community.

So, as the title says, I'm having issues with the engine on my upcoming T5-K Starling. I want the aircraft to be able to reach Mach 2 or at least get very close to it, yet it's not able to. Modifying engines by my standards would mean that it gets unrealistic, which it probably isn't to begin with.

So I'm turning it over to the community for help.

Here's the link: Ooo, shiny