I would say that conscious awareness is at its peak when we need to make split second decisions. Lewis's decision to put his foot down has to be based on his conscious awareness of the situation and perceived opportunity.
Well, anecdotally, that sounds incorrect to me. I used to play a lot of sports, and your phrase about 'conscious awareness of the situation', doesn't sound right at all. For example, in a game of football, there are times when you can look round and weigh up what to do, and evaluate how the game is going; but if you are charging up the field, and the ball is being swung over, you let your body react to this. Even to call it a decision sounds odd to me. 'Preconscious' is a useful term actually, and footballers often say, when asked how they did some brilliant play, 'I don't know how I did it'. Well, I believe them.
There is also the phenomenon of over-thinking in sports. This can happen to players at every level, but it is striking in very good players, as their form drops, as they attempt to think it through. Eventually, they usually relax and stop over-thinking, and their form improves. The football coaches often say, look, he had too much time, and he ruined it.