.each running too slowly

Ive built a simple function to look at each div, and then then height of each child div inside, get the maximum height, and then set the largest height to all of the child divs:-

                $(".clsTransactionRow").each( function () {
                  var maxHeight = 0;
                  $(this).find("div").each(function () { maxHeight = Math.max(maxHeight,$(this).height()); });
                  $(this).find("div").height(maxHeight);
                  });

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It works fine, however I have 2796 divs that are .clsTransactionRow so the above code take 45 seconds to run, which is unacceptable.

Can anyone think of anyway to optimise the my code, or make it quicker?

Thank you