Here are some pictuares for you. You can change the display settings.. and from map to map the will have more or less influence on your performance. Here are two pics, one from high resolution and one with lowest settings. I used maps I made, as I know what I did on them and what I had in mind. I make maps with high settings and far fog distance in mind, the reducement is for players who either don't want high textures or there PC can't handel so much details. On Dreamus it's just one, as the different is not very high.
High settings:

- image003.jpg (213.27 KiB) Viewed 27728 times
Low settings:

- image004.jpg (208.56 KiB) Viewed 27728 times
Dreamus 2 SE high settings 470 fps

- image002.jpg (213.14 KiB) Viewed 27728 times
M5MantaMadness Low settings 412 fps
You have to know that you normaly will not stay up there, but on the ground and in the building. There is the fps higher due to the mountains and so on. And it's for low power PCs, so normaly you should be able to increase at least the fogdistance a bit.

- image001.jpg (69.67 KiB) Viewed 27728 times
M5MantaMadness High settings 218 fps

- image007.jpg (117.76 KiB) Viewed 27728 times
M5s-RottenTanks Low settings 469 fps
On this you can good see how textures, polys and colours are changing as well as how static meshes are disapiaring due to the fogdistance.

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M5s-RottenTanks High settings 431 fps

- image006.jpg (178.57 KiB) Viewed 27728 times