It's not always possible to be more efficient. No matter how efficient, some things just take time to learn and understand. Let me use painting as an analogy. You can use a sprayer, a roller, brushes, or cotton swabs to apply paint to a wall. A sprayer is much more efficient than a cotton swab... but you're still going to have to wait for the paint to dry in between coats -- and that time isn't going to change, no matter how efficiently you applied the paint to the wall. I can teach you combative skills to a good level of proficiency in a matter of weeks. But to understand the principles underneath them, and to be able to go beyond the direct techniques -- that's going to take a lot longer. And if you focus too hard on the wrong parts -- you'll never get that understanding.