Ireland coach Declan Kidney was happy with his side's comprehensive 62-12 victory over Russia, saying the result was flawed by minor lapses only.
The Irish blew away their minnow opponent in damp conditions in Rotorua with three quick-fire tries to finish the first-half, before adding a further six after the break.
"We went asleep in the middle of both halves but we are delighted with the win and to score nine tries," said Kidney.
"We knew they would come at us - we had to go strong at the start of the first half and we did that.
"Sometimes we made hard work for ourselves but the Russian defence is stoic and they scored two good tries."
The Russians got off to a flying start after the interval, scoring two tries to bring the crowd into the game, but it was too late to salvage a result.
And stand-in skipper Leo Cullen credited his side's defensive lapses with experimental structures.
"We tried a few different combinations this week," said the second row.
"Russia posed us a lot of problems, particularly in the second half obviously getting two tries. But we'll take the win, move on and obviously reassess now as the week goes on."
Ireland are top of Pool C with three wins out of three, including the stunning victory over Australia last week.
However, Kidney is already looking ahead to the final pool game against Italy on 2 October and has warned his side that there is still plenty of work to do before the quarter-finals.
"We're doing OK," he said. "Australia was the game everybody was talking about, but we always knew Italy was going to be the vital game if we were going to get out of the group.
"The fact that we find ourselves in a winner-takes-all situation, more than likely, with Italy next Sunday, it's just like a Cup final.
"The fact that we've something to play for is great, there's obviously a big prize to play for ... but you know you could also be going home on the flight the next day as well.
"We wouldn't be under any illusions about the task ahead."