You can't draw that data on the screen in any meaningful manner without zooming. At various zoom level what you actually want is a low pass filter over a slice

You can't draw that data on the screen in any meaningful manner without zooming. At various zoom level what you actually want is a low pass filter over a slice of the data, such that the low pass filter matches the display. E.g. I can display 1080 pixels across, but there's 1 billion points. Ok... meaningful data is limited. Optionally you could do what other device displays do and show a sort of fuzzy intensity gradient at each display x axis over y points to represent the number of actual samples at that point. It's kind of crazy honestly. There's many options to display billions of points across 1080 pixel wide displays but none of them really show you the reality. Only some subset of information of the reality there.