I noticed since Mathematica v12 a very slow frontend when rendering the Units.
Easy to show:
Quantity[Range[1, 100], "Euros"]
Takes (timed with a stopwatch) approx. 17 seconds.. Is it my computer?
Quantity[Range[1, 100], "Euros"];
has immediate result.
FinancialData it's almost impossible to show the results in the Notebook.
Any thoughts appreciated