Printing quality issue on angle surface

Bambu Lab P Series Troubleshooting
1

HeLLo Bambu Lab Community ,
I have an issue about printing a stand which is shown on photos.
As you see it , 2 of 4 legs out surface is not printed well. other places are pretty fine. but only 2 legs outside surface are problem. inside surface of 4 legs are good. Do you have any idea of this problem ? And How can i solve and correct it?
Filament ; ender Pla +
printer p1s
i am printing this model legs.
https://makerworld.com/en/models/1135075-ikea-strala-diamond-pattern-lamp#profileId-1136572

Thank you.

1 (1)
1 (1)1536×2048 197 KB

1 (2)
1 (2)1536×2048 235 KB

1 (3)
1 (3)1536×2048 223 KB

1 (5)
1 (5)1536×2048 251 KB

1 (6)
1 (6)1536×2048 230 KB

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2

Try toggling your chamber/aux fans.

Also its hard to see, but try to make sure the slicer isnt putting your seams on the overhung underside part of those legs. This gets automatically done for “half” of your legs when the setting “seam alignment → Back” is set