Best display settings for PMDG 737

I usually get around 25FPS with most aircraft in FS2004.When I'm in VC mode wiht the PMDG 737 I drop down to around 15.I of course expect this and ofr the most part it's WORTH it to see that awsome flight deck and cabin!Can anyone reccomnd some known settings though that are a good comprimise between great view and good frame rates specifically for the PMDG '37?Thanks!Gavinhttp://www.interprom.com/gav