Hi Piotr,
Based on this answer : How to set the value at the cell without change the source value at the cell?
I changed the way my calculation is done. It is now done via the “modifyData” hook, instead of a renderer. This allows me to copy the result of the calculation.
However, the calculation is much longer than with the renderer, but I guess it is because I modify table’s data instead of just modifying the rendered data.
I will modify your link to give you an example.