The west Londoners have not won in their last seven games and have failed to score in their last three.
Dimitar Berbatov was their one bright spark on Saturday, but the team lacked creativity and cutting edge provided to them by Clint Dempsey and Mousa Dembele last term.
Dutchman Jol is remaining calm, however, and is sure his side will improve when Brede Hangeland and Bryan Ruiz return from suspension and injury respectively.
"We're still only three points away from 20 and there are still three games to go before we've even reached the halfway point of the league program," Jol said.
"Our target is always - like 10 or 12 other teams - to get to 40 points, so I'm not worried.
"Hangeland is coming back, Bryan Ruiz is coming back, so hopefully if everyone is on the board we can try to get back on the winning track."