The unbeaten Group C leaders failed to light the blue touchpaper in Torshavn, although they still got the result which leaves them on the brink of qualification.
However, Low knows his team will not face sides on the same level as the Faroes in Brazil next season, which is why he says they must improve on their shots-to-goal ratio if they are to be one of the leading protagonists next summer.
"If there's anything we can be critical about, then it was the final ball or the final touch," Low told ARD television. "We can still improve that.
"I think we have got to improve our game in the final third. There are nations who can win with just one or two shots.
"We are winning all our games, but in recent months we've seen that we need lots of chances to score so we need better incision in front of goal."
That is something Low believes he will be able to work on in the month leading up to the World Cup and not now or even next month, when he only has his team for a week.
"When the team's not been together for three or four months, which was the case with us, then it takes a while for things to start coming naturally," said the Germany coach.
"We have players who come from different clubs with different philosophies so it does take us a few days to get them used to what we want, but it's great for us that we can now wrap up qualification at home."
They can do that by beating Ireland in Cologne next month, otherwise they will just need to avoid defeat against Sweden in their final group game to qualify.