Another win would be the 72nd of his career, leaving him 19 adrift of the all-time record of seven times world champion Michael Schumacher, the most successful driver in the sport.
Sunday will be Hamilton’s second chance to wrap up the season after he failed to do so in Texas last weekend by finishing third.
“In the past sitting back and watching grands prix on TV with bacon toasties in the morning, I would have wanted it to go to the end. But I’m not in that seat,” said the reigning champion of the title battle.
“When you’re in it and living it you just want to get it done. As long as you get it done.”
Despite that, the Briton appeared relaxed – as he had been in the United States last week.
“It’s not my first rodeo. I’m guessing that’s just the place that I am at in my life. Being that I am a bit older and I have the experience to know what I need to do to get myself into shape, and I’m just really enjoying racing,” he said.
Hamilton said his car had been taken apart just before the Austin race to change the water pumps.
“They took the car apart and when they put it back together, it was imbalanced, with a massive cross-weight in the order of 50kg,” he said. “If we had not had that problem, it would have been a much different race.”
Mercedes said a number of factors can cause a cross weight issue but the car had been reassembled correctly by the mechanics.