Realtime doesn't necessarily mean low latency, it means consistent latency.

This is such a critical distinction which can be counter-intuitive. In this case, their game may run slower, they just won't get lags resulting from local resource contention. And even that statement has caveats.

One of the biggest difference between self-taught developers and ones with CS degrees is that the ones with degrees usually understand a lot of important theory, such as O(1) means constant time, not necessarily fast time.