The mid-table Canaries have lost seven of their last 10 matches ahead of tonight's Premier League clash with Tottenham, including a 5-0 loss to Liverpool and the 1-0 defeat to Luton which saw them become the first top-flight side to exit the FA Cup to non-League opposition in the Premier League era.
The miserable run followed a 10-match unbeaten streak, including a League Cup win over Spurs.
Hughton (pictured) admits he is worried by the form slump, but had the same points total come from a more topsy-turvy stretch it would be looked at more favourably.
"It's a question of fine-tuning," Hughton said.
"We know where we are. We had this very good run, we've been on a bad run.
"It is a concern because it has to be. You'd rather be picking up points than not, but these are the things you have to deal with in the game."
Defoe set to return for Norwich tie
Tottenham manager Andre Villas-Boas has revealed striker Jermain Defoe has had an injection to allow him to return from injury and that losing the England international for the FA Cup defeat at Leeds will not force him into the transfer market.
Defoe sat out the 2-1 fourth-round loss at Elland Road due to a pelvic muscle injury and with Emmanuel Adebayor away with Togo at the African Nations Cup, Villas-Boas has limited options in attack.
But he said Defoe had undergone scans and had a plasma injection to allow him to be fit for the Premier League trip to Norwich tonight.
When asked about the extent of Defoe's injury, Villas-Boas said: "He felt some tightness. It was a grade one injury to his obturator muscle which was treated immediately.
"We acknowledged that resting him for Leeds was almost compulsory so we left him out of the game and he has made an excellent recovery so he is back."