K1C Slicing and printing, the print (and slice view) show rings and waves

When I slice this file and print it, the outside is very rough and has ring patterns and lines. I see a suggestion on changing the seam settings… What should those settings be if I am using Creality print?

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I have the seam set on random

And don’t forget the setting Ironing at “All topfaces”, it 'll take some time but the results are stunning smooth.

Good day. What kind of ironing?

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rectilinear