The French defender reflected on his performance to the club's website after impressing onlookers during Chelsea's 2-0 win over Newcastle United.
The 20-year-old received widespread praise for his part in the 2-0 win over the Magpies which kept Jose Mourinho's side top of the table, opening up a two point gap over reigning champions Manchester City.
He told chelseafc.com: "I’m very happy because it was my first start in the Premier League, we kept a clean sheet and we won the game. We want to be champions and if we play badly or well the most important thing is the result.
"The Premier League is not the same as the league in France, it’s completely different.
"It’s much faster and you have to be ready for contact, too. The Premier League is the best championship in the world for me. I was very happy to play 90 minutes, I think I had a good game but I have to continue improving and working."
Zouma replaced Gary Cahill at the heart of the defence for the win over Newcastle and did his chances no harm by the solid performance he put in. Cahill and John Terry have been part of a pretty solid defensive unit that has been the foundation of the Blues' title charge, but it must be comforting to Jose Mourinho that he has effective, and young cover in the form of Zouma.
He signed for £12.4 million last January but was loaned back to St Etienne and had made appearances in the cup competitions so far during this campaign. Saturday was his 11th appearance in his debut season playing for the club and he has performed solidly so far.
With the fixtures piling up, we can expect to see more of the Frenchman in the near future where Chelsea will take part in the League Cup semi-final over two legs against Liverpool, and are still in the FA Cup whilst trying to sustain a title challenge before the Champions League resumes next month.