Hyperprop runs on live, licensed CME market data. CME (the Chicago Mercantile Exchange) is the exchange where the futures you trade, like NQ and ES, actually trade. "Licensed" means Hyperprop pays for the real feed directly. It is not a delayed feed or a second-hand estimate.
Why this matters, especially if you are trading an evaluation: your risk limits are measured against the real price. A delayed or estimated feed can show you one number while the real market is somewhere else, and you can breach a limit on a fast move your screen did not show in time. On the licensed feed, the price you manage your risk against is the real one. This is what lets drawdown stay accurate to the tick.
It heals itself
The data feed includes self-healing for missing data, so if a gap appears it recovers on its own rather than leaving a hole in your chart. If you switch tabs or your computer sleeps, the chart reloads automatically when you come back, with no manual refresh.