The French club registered its first win of the season last weekend with a victory over Leeds.
Catalans attack was in full swing against the Rhinos but Horo believes there’s still plenty of improvement to come on the defensive side, as the new squad starts to gel.
“It was obviously good to get the two points, both teams were pretty desperate for it,” he told Love Rugby League.
“In the end it was a bit scrappy, in the last 15 minutes, but we’re happy we got the win and hopefully we can build on it.
“We put on some points, but I think in the past this team has always been able to put on points.
“I think we were a little disappointed in our defence in the last 20 minutes, it’s something we’d put a big focus on this year and we were awful against Hull two weeks ago.
“It’s still something that we’re working on. We’re gelling as an offence and we’re starting to put on some points but it’s only early days.
“I think we’re still a good handful of games – four, five games – off being at our best.”
Catalans are back on the road on Sunday, traveling to Belle Vue to face Wakefield.
“We haven’t played in the UK since round one against Wigan, so depending on how the conditions are, those are the two things we wanted to address at the start of the year – our away form and our defence,” Horo said.
“Another good opportunity to see where we’re at.”
The Dragons recently welcomed Willie Mason, a former teammate of Horo’s at Manly, to the club.
“Mase is pretty funny, he’s a big character,” the 29-year old said.
“He’s been a good addition.”