Salah enjoyed a sensational first season with the Reds last term, scoring 32 times in the league as the records tumbled.
The Egypt international set a new benchmark for goals in a single 38-game Premier League season and became the first African player to reach 30.
He was also decisive in the Champions League, playing a vital role as Liverpool made it to the final, where his campaign sadly ended early as he suffered a dislocated shoulder in the first half of the 3-1 defeat to Real Madrid.
Salah's start to the new season has failed to live up to expectations, having scored just three goals and set up one, but Klopp - who has been nominated for the Premier League Manager of the Month award - insists everything is fine with the forward.
"Expectations changed, that's normal as he set a new standard," Klopp told reporters on Friday.
"Nobody expected 10 goals after five, six, seven games. Each striker could write a book about these moments, scoring without knowing how.
"It's so rare, 98 per cent of a striker's work is the hardest work, two per cent is the easy-going stuff.
"The only thing which has changed is the kind of questions you [the media] have asked. First, it [Salah's excellent form last season] was a nice surprise, now it isn't. That's the world.
"It's the same with me. If I win games, I know everything about football. If I lose three in a row, I have no clue about football.
"Both are not true, it's always somewhere in between. There's nothing to worry about. I'm relaxed about that [Salah's form]."