Currency Conversion (Multiple Sources, Multiple Targets) - Fact Table w/ Two Dates, Two Amounts

I wonder if you could use TREATAS to pass the filter inside a calculate. Should be faster than FILTER.

https://www.sqlbi.com/articles/propagate-filters-using-treatas-in-dax/

Magellan2022 This looks like a measure totals problem. Very common. See my post about it here: https://community.powerbi.com/t5/DAX-Commands-and-Tips/Dealing-with-Measure-Totals/td-p/63376

Also, this Quick Measure, Measure Totals, The Final Word should get you what you need:
https://community.powerbi.com/t5/Quick-Measures-Gallery/Measure-Totals-The-Final-Word/m-p/547907