Optimizing BIOS for MSFS 2020 & 2024 - Tips, Advice and Discussion

I’m open to that as well. I think we should agree on a fixed set of settings so everyone can run the same test conditions and we get truly comparable results - ideally with everything like DLSS, frame generation, and other performance-enhancing features turned off for a clean baseline.

I don’t use Developer Mode for the FPS overlay either.
How to Enable FPS Overlay Without Developer Mode - User Support Hub / Miscellaneous - Microsoft Flight Simulator Forums

From what I remember, having Developer Mode enabled used to have a noticeable negative impact on benchmark results.