That’s how you want to be doing any task well - without involving additional thinking, so I don’t think that this is a bad thing, or abnormal I would say.
When you’re really concentrating and focusing, that’s the result of redirecting your mental power towards task at hand and then you have no idea how much time has passed. I’ve had an exactly the same experience during my real test. I couldn’t tell you what I was doing in the middle of it and I feel like that’s how it’s supposed to be because it needs to feel automatic and auto pilot for 80% of the questions and only 10-20% are the ones where you need to struggle and Change course.
So I would say don’t change anything because clearly it is working based on the score, and at least my experience, but one area potentially to tweak is whenever you come to a question that you feel is a doozy, look at the clock and write down the time so you don’t have to keep it in your mind. I would say you only need this for the data insights questions or very hard quant where you’re just stuck. Verbal I feel should be as auto pilot does it gets with occasional adjustments if you are falling behind or running ahead.
So I would say do exactly as you have done just make a small tweak for those ultra hard questions where you lose track of time and what you may realize that you’re actually doing great on time in those hard questions this will just help you not panic and not be constantly wondering do you have time or not.