Faster: Query Editor or Dax expression(New Column)

I have a large dataset. I can accomplish the same thing by either adding a Custom Column in Query Editor, or adding a new column with a Dax expression. Which one will have less impact on my report?

@Usates

If you want to create a calculated column, Create a custom column in Query,
If the new column is Numeric data type, then create DAX measure.

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