FPS difficulties... slight frustration.

Hi, Now I know that PMDG isn't a company for skimping on details, but just as a thought, could you have made this plane a little less FPS intensive (or with more flexible options for tuning graphic settings within the aircraft) for users with lower end systems? I know there are quite a few people out there who were mildly disappointed by the way the aircraft performs on their more "budget oriented" rigs. My system surpasses the minimum requirements for the airplane, but that still means 4-8 FPS in flight over Southern Illinois (not a very scenery-filled area ) with graphics settings at near lowest possible, except for Global Texture Resolution, of course. With the 747-400X i was getting 30 fps (capped) solid using the same settings. My processor is not good at all, but it is just something I have to make do with. I have 7 32-bit, which limits memory, but upgrading to 64-bit would mean a clean install and I simply do not have the time to do this. I've got to wait now until I purchase an entirely new system. Thanks for working so hard to make a truly excellent product, hopefully someday I'll be able to use it! Feel free to post any suggestions regarding FPS gains on this forum (I already read the intro manual and took all of those suggestions). Sincerely, Dylan