I want to share what I tested and know about fps efficency
My monitor 2k 144 mhz .The tecknician where ı bought my monitor told me that if you want to see full fps that 144 mhz.you must use data port cable for connect monitor and computer.
Not msfs but for another game ı tried this.when ı used hdmi cable ı took 60 fps.when ı tried dataport cable ı saw 144 mhz in that game
Now ı am taking 50-60 fps in msfs 2020 with
İ9/9900k and 2080 ti