Stormtrooper
It is basically the same info but all in one spot. I used to have the multiple links in my Favs folder also until this one link panned out to be the best one stop shop.
Sim
It might help zero in on some help, if you'd post your system specs.
FWIW Mine is a very first generation purpose built FSX machine that is for the most part all 2+ year old hardware. By using the tweaks from that post I have no complaints about how FSX performs or looks on this aging system.

E6700
Asus Striker Extreme 680I
BFG 8800GTSOC
GeForce 190.38
X-Fi Extreme Gamer
2GB Corsair 6400C4D
Saitek X52
Windows 7
FAC