The 2-0 win moved to Palace into fourth place on the Premier League table.
Speaking to BBC Sport, Guéhi smiled: “It was a good game for us, I think, right from the beginning. We always knew that they were going to make it tough for us.
“With a new manager, new hope, new motivation for them, it was always going to be a tough game, but the lads stepped it up. That’s what we usually do, and it was a disciplined performance from the start.
“I think the position is irrelevant at this stage of the season, to be honest. The most important thing is the performance and the way we played. It's vitally important that everyone continues to keep performing the way we do.
“Like I said, it was a disciplined performance, everyone knowing their jobs and sticking together – the boys at the front doing their jobs, and the boys at the back doing their job – so it was a really good performance from the start.”
Guéhi added: “I think especially after last season, the goal hopefully is to win another trophy, and try and surpass what we did last season in terms of where we finish in the table, but like I said, it's still very early.
“We know that these games are going to define a lot of the season, so I think it's just to maintain that focus, and again take every game step by step."