Ayr United gaffer Mark Roberts claimed Peralta had deliberately tried to trick the referee in the SPFL League One match at Somerset Park on Sunday.
Former Partick Thistle striker Roberts, who played in the game, was booked for complaining to whistler Bobby Madden about the midfielder's conduct.
And afterwards the Ayr boss said: "He (Peralta) dived. He went down like somebody shot him. But then he jumped up two minutes later and he was fine."
But centre-half Mohsni, who scored once again in the 2-0 victory, reckons those comments are,unlike one of his shots, well wide of the mark.
The French-Tunisian understands just how difficult it can be for a foreign player to adapt to the rough and tumble of British football.
For he struggled to get to grips with the physicality of the game on these shores himself when he first arrived three years ago.
Mohsni believes the Central American, who was singled out for abuse by an irate Ayr support, is taking time to familiarise himself with the game here.
And he is confident the right-sided 24-year-old will develop as a player as a result of his time at Ibrox.
The defender said: "Arnold is now playing a different kind of football to what he has been used to playing over in Honduras. But he will learn.
"I believe British football, and particularly Scottish football, is different to what is played in any other league in the world.
"But Arnold is a very good player and I have no doubt that he will adapt. When you are as good as Arnold is technically you will have no problem.
"After a while he will know that whenever he goes out on to the field he is going to receive some kicks from opposition players.
"I think he will become stronger as a player, both mentally and physically, as a result of playing in this country. That is certainly what I have done."
Roberts' controversial comments come at a time when diving and feigning injury has once again been brought into the spotlight again by a high-profile cases in the Champions League.
Barcelona wonderkid Neymar outraged Celtic supporters at Parkhead last week when he reacted excessively to an off-the-ball challenge by Scott Brown.
The incident led Scotland manager Gordon Strachan to claim that the culture was rife among foreign players, like the Brazilian forward, in Europe and would never be stamped out.
Mohnsi, who has now netted four goals in eight games for Rangers, believes Peralta is simply taking time to adapt to the different style of play in Scotland.
And the 26-year-old is confident the former Vida player, who has won 13 caps for his country, will be a star for Ally McCoist's team in the 2013/14 campaign.
He reflected: "When I first came to this country I joined Southend and I was instantly struck by how physical it was from the first game that I played. But it just makes you stronger.
"I discovered straight away that the striker you are up against doesn't help you and the referee doesn't protect you. I found it quite hard to get to grips with.
"But after a couple of games I knew what to expect and I dealt with it far better because I knew what was going to happen in every game I was involved in."
Despite Rangers winning comfortably to surge eight points clear at the top of the League One table, Peralta did not enjoy his most effective outing against Ayr.
But Mohsni has been highly impressed with the player's deadly delivery in the first-team appearances he has made.
And he is hopeful his team-mate can keep getting his name on the scoresheet with the midfielder supplying such dangerous balls into the opposition penalty area.
He said: "It is always nice to score goals. I know that my main job is to stop the opposition team scoring, but I also like to get forward.
"Arnold is an excellent player technically and we have scored a lot of goals thanks to the crosses he has played into the penalty box this season.
"He was not involved for the opening weeks of the season and I am sure that, as time goes on, he will become fitter and stronger and will be more influential."
The 2-0 win in Ayrshire on Sunday took the total number of goals scored by Rangers in the league this season to 34.
Mohsni is confident his side will be able to maintain their free-scoring form when they resume their league duties against Brechin City at Glebe Park on Saturday week.
He said: "We are playing well at the moment and scoring goals from all areas of the pitch. Our defenders, midfielders and strikers are all scoring goals. It is good to see.
"We treat the opposition with total respect whenever we play. We know all of our games will be difficult, especially those away from home.
"But we are confident we can score whenever we play."