Suggestions needed to get peak performance

[pickup]

I would appreciate any help I could get on my system.
I am no computer expert but this is what I have.

Pentium 4 CPU, 3.2 GHz overclocked to 3.5 GHz
1Gig of Ram
Nvidia Geforce 6800 GT 256MB video card
80Gig HD
I have all the sliders maxed out on FS2004 and I have the frame rates set at 24fps. The frame rates stay up around 20 or better in most locations but when I get close to an airport such as Anchorage or Seattle it pauses for a second or 2 all the time to reload I guess. I have extra scenery in this spots. A place like LAX, with the default scenery,   does the same thing.
Anyone have any ideas where I should be adjusting my settings in my video card and anything else that needs adjustments to stop the jerks and make it run better?

Pickup

[ctjoyce]

Run FS through FSAutoStart. Also try going into your card options and changeing the sliders to the middle of the road insted of full quality. Other then that I dont know what to tell ya

Cheers
Cameron

[pickup]

Ok thanks for your help.
Pickup

[congo]

Turn ground scenery shadows off.

Set anti-aliasing to 2qx and anisotropic filtering to 4x in your driver settings (no application control), watch the FPS shoot up. Increase the 24fps limit to 40 or so.

Don't set antialiasing in the fs9 settings, leave it off there.

There is a line in the fs9.cfg that can be edited to reduce the texture load lag or whatever it is.

I think this is it.....

;TEXTURE_BANDWIDTH_MULT=40 ; default
TEXTURE_BANDWIDTH_MULT=200 ; new value