If a government had many streams of temporal data, eg coordinates of people's locations, is it just a matter of no cache availability and computation that would slow this down?

If neither of those were concerns, I imagine applying a heuristic on points through time to predict where they would be next. If it's a sleep range, it would expect the current "pixel" on the next step until 9am. That might increase memory and computation costs, but increase speed with a reduction in accuracy.

If you're in the government blink once to confirm.