help with low FPS (wind Waker)

[Kokumotsu]

Im having problems getting a ful 30 FPS, when im outside the home island. i stagger between 25-30 FPS. when inside i get full. anyway to fix that

my specs are
Amd Phenom II 1045t @ 2.7GHz
8GB Ram
Sapphire Radeon HD 6850
also the config section is exactly how the best performance page is listed

config:

i dont know what could be doing it

[Starscream]

Not listed in your shots, but set frame limit to auto or off and disable audio throttle. Other than that, your settings look good. The only thing you can do is overclock that CPU a bit to get more processing power.

[Kokumotsu]

cant over clock CPU =( i would have done that.Bios doesnt have advanced settings, but ill try those

[Duke Nukem]

I would uncheck Fast Mipmaps and Disable Per-Pixel Depth since I was told they're not needed.

Also anti-aliasing and anisotropic filtering could bog down the performance.
Even with my rig I don't use any of those, it's set to none and 1x and the game looks good anyway.

[Starscream]

You both have good enough video cards where those options shouldn't be an issue, not to mention the game could be looking better and there is no reason to not use 3x IR at least. You won't lose any frames by doing this with that hardware.

[Duke Nukem]

Oh OK, I could almost have swear that I have had smaller speed dips with these things on but maybe it was just in my head.

Anyway just one question, I noticed that Cache Display Lists is checked.
I don't have that checked, what good could that possibly do?

[Starscream]

It's probably not worth using, but has nothing to do with his slow-down issue so it didn't matter.

[Duke Nukem]

Ah OK, well the configuration looks pretty normal to me then.
Guess we'll just have to wait and see what he gained from setting Framelimit to Auto and Disable Audio Throttle.

[Kokumotsu]

i already had frame limit off before i posted. audio throttle.. didnt help. ill try what others say

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i dont understand, its 27 fps when looking at my house. 30 when looking at the ocean to the right, but when i look at the house on the other side of the island 20-25 fps

[hacker9001]

change to openGL,audio throttle off,dont check cache display list
i have same config like u but my laptop is weaker (i5 2430m 3.0ghz,geforce 410m 1gb) and i always have full speed (auto windows size 1366x768,AA 4x,AF 16x).