perfomance difference between nested for each loops vs. XSLT with single loop

Summary: i have working integration with 3 nested loops (result sets, rows, fields) that looks bulky in OIC. 2 outer loops have no actions beside narrowing xml elements to actionable or not actionable using switch.

I'm curious if i get better performance if i take result set and transform using XLST to pure actionable elements and follow up single for each loop.

Will there be noticeable performance difference? Or the only benefit would be cleaner look of integration flow.

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