Liverpool manager Brendan Rodgers was delighted after his side's third positive result in a week.
Back-to-back wins against Stoke City and Leicester City saw the Reds move up to 8th in the table, keeping the distance from fourth-placed Manchester United to only five points.
"What's important for me is the spirit," Rodgers said.
"Ludogorets was a good performance. We had a good performance at the weekend [against Stoke] even if it was a tight game. I think being competitive is very important for us.
"People looked at our football and the fluency in our football and the speed in our game and we've always been competitive. But for that little spell up until Crystal Palace, we weren't.
"We've changed it around and looked at the mentality of the team going into the games and the focus and the concentration and that, over the last three games, has been excellent.
"I can see that we've still got a way to go, but we're going to fight our way through these performances and the spell that we were in. We've now got really exciting games coming up and we want to keep performing and keep winning.
"Make no mistake, this is a tough place to come. Leicester have only lost once here all season.
"They've played Arsenal and they've played Everton, and had some tough games here. They beat Manchester United, so this is a tough place to come."
Liverpool host Sunderland on Saturday and Rodgers says there's still work to be done to reach the level he wants to reach.
"The momentum is important," the manager said.
"That's three good performances now and results, so it's small steps but we've still got a lot of work to do. We'll get to where we want to get to.
"You saw the spirit in the team tonight. They kept fighting right until the very end and we ended up with a very good result."
