"We've got a specific focus for ourselves again and its making sure that we prepare really well to perform well," said Kearney.
"It doesn't change with how many cameras are here or not - that's not our concern. Our concern is making sure that we prepare well."
The Titans also defied expectations last weekend, with former Warriors centre Konrad Hurrell's 78th minute try clinching a shock come-from-behind 30-28 win over Canberra on Sunday.
Kearney denied that result had put the Warriors on notice and said it reflected the competitive nature of the NRL and the need for his side to be consistent and build upon their performance at Optus Stadium.
"I don't think you need a warning in this competition, that's just the way it is," he said.
"Whoever you're playing, wherever you're playing them, it's such a demanding competition that you have to be ready to go for 80 minutes and sometimes even longer, every time. It's no different this week.
"There was a period there in the second half where we went away from the game plan and then we found ourselves under a bit of pressure.
"Earlier in the game we gave too many penalties away and again put ourselves under a bit too much pressure.
"The guys responded well to that but that's definitely an area of improvement for us."
Captain Roger Tuivasa-Sheck acknowledged there were positive signs in the first-up victory, but warned it was too soon to make any bold predictions and insisted the players are not getting ahead of themselves.
"It's too early to call," Tuivasa-Sheck said. "It's just the first game and we just want to improve each week.
"They're all excited and happy that they got the win but just after the review there's still a lot of improvements that we need to do.
"There's still a lot of small things that we can fix and against the Titans, the way they played last week and the win that they got, we need to step up again."
Tuivasa-Sheck was one of the Warriors' best last week, producing the last pass for two tries and making two line breaks, while he also made two try-saving tackles.
The 24-year-old was pleased with his ball-playing and defensive work but was unhappy after he failed to take a kick-off on the full, and had to retreat to collect a Rabbitohs clearing kick that almost saw him trapped ingoal.
"I was pleased with the way I started but I feel like there were still a lot of errors that I put in, especially with my back-field positioning and catching the high balls and I want to improve on that."
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