[Solved]P3Dv3/FSP Framerate issue

[Joeflyer]

When you use the mini panel, that's when the frame rates take a drop, correct? Typically the frame rates, as far as my particular experience goes with P3D, do drop and become erratic when the P3D menu is showing. Add another window to it like the mini display and it gets worse. Graphics drivers can play a role in this as well.
Have you tried a flight WITHOUT the mini display and access what is needed through the FsP menu?