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World creator to UE4

Hello, a bit of a newbie here!
Can i have a little help with the World Creator settings for UE4?
I found the page with recommended landscape sizes but except the resolution and the section count i cannot figure out the WC settings that match the other numbers.
Can someone simplify those for me? I am trying to create 20x20km 4033x4033 lanscape and i cant figure out the best settings for performance (number of sections and stuff).
Thanks in advance!