Thanks for the FSX Settings link.  My settings are fairly close to
those listed except I use Nhancer to adjust the Video Card.
I like lots of scenery.  There's a price to pay for that.

I'm still experimenting with settings for using the C-130X.  The only
2 aircraft add-ons I have in FSX are the C-130X and the Carenado C-206.
The C-206 gets FPS in excess of 40 everywhere.  

Hopefully the SP1 for the C-130X is not far away?