You would indeed do that. But you would also go on straighter routes. It would not be slower, because you would time lights perfectly, pick routes for the best combination of comfort and time.

But there will be tradeoffs, of course. You may pick a slower, more smooth ride because you will work or read or watch tv, and not mind the extra time as it is not lost time. You may choose a fast, more distracting route (with warnings of upcoming curves etc.) if time is the most important thing.

But would you want to drive yourself? It won't be faster than the latter.