[Vindicis]

I don't think converting is slow by itself depending on what you need done. I have a function in my code I wrote to convert strings of floats/doubles to a rounded string of however many digits you want(for storing financial data that was muxed with multiple streams), and converting 1.59688139452f to a string, and then rounding that string to the 5th decimal place took 8.759 seconds for 10 million iterations (87.5 nanoseconds/iteration). Granted, it was written for my specific use case, so I don't need to handle the various edge cases/formats. But, little is inherently slow if you take the time to write a solution for your own need.