Matt Jarvis shared the frustration of his manager after the Hammers went down to a 1-0 defeat at West Bromwich Albion on Saturday.
Saido Berahino's eleventh minute goal was the difference as West Ham failed to make an encouraging first half display count.
They faded after the break to allow West Brom to collect a vital three points and leave themselves still short of mathematical safety.
He told whufc.com: "It's very disappointing, we played extremely well in the first half and had the best chances, kept the ball, got it wide, got crosses in and should have been one, maybe 2-0 up, so it was very disappointing to concede and not get back in the game.
"We enjoyed the possession and creating the opportunities in the first half, but it was just disappointing that we couldn't get the goal and get back into it.
"We understand that it's disappointing [for the fans]. We have lost a few games in a row and we're working extremely hard to make sure we stop that. We've got an opportunity next week to get points on the board and finish the season strongly."
Jarvis' own form has been solid as the 2013/14 campaign draws to a close and he is keen to end the home programme with a bang against Tottenham next week.
He added: "I'm pleased with my own performances, but it doesn't make a difference when we're not picking up the points we need to.
"Tottenham is the perfect game to go into at home. It's a big rivalry and one that we've enjoyed this year, so hopefully we can finish at home very positively."