sorry if it is already posted
i got much better performance when i did these tweaks, now i'm able to run it on 1024x768 and it runs to me better than 800x600.
if this helps anyone please reply
open the file My Documents\My Games\Oblivion\Oblivion.ini
Allow30Shaders
This is a pretty harmless one if you've got the hardware to support it. Newer video cards will have support for 3.0 Shaders, just check the specs. If yours does then changing this from 0 to 1 will give better performance with no hit at all whatever to graphical quality.
a TWEAK FOR NVIDIA CARDS
One of the best performance enhancers out there is exclusive to Nvidia users.
Supposedly this tweak can almost double your framerate with absolutely no graphical hit whatsoever. Easily one of the best tweaks available.
Make sure your video card drivers are up to date, then search
Google for the Coolbits registry tweak. Once you have it installed on your system then go to Control Panel, Display, Settings, Advanced, then click on
your video card in there. Under "Performance & Quality" settings there should be an option "Additional Direct3D Settings".
Under this heading is where you will find what you are looking for. The ultimate tweak is right there: "Max Frames to Render Ahead." Change that from 3 to 0 and bam, apply it and you're set. Hopefully the actual results you get on your card live up to the hype created by this particular tweak..
i got much better performance when i did these tweaks, now i'm able to run it on 1024x768 and it runs to me better than 800x600.
if this helps anyone please reply