The two clubs could only manage a 0-0 draw in an entertaining Championship clash at Selhurst Park.
"All it needed was one good shot, that's all we were lacking. We started a bit slow and the longer it went on the better we looked," said Holloway. "I find it hard to believe we didn't win the game. If we'd have got a goal we'd have got what we deserved.
"There wasn't enough movement in the front four. We were a little bit static but the rhythm is coming.
"They are all really disappointed because we want to stay with the top teams in this division and believe we can go up automatically."
Palace travel to Huddersfield Town next weekend.