The Gunners face Sunderland today at the wrong end of the table.
Ramsey told Arsenal Player: "It's been a really disappointing start to the season, there's no question about that. We've had a few decisions against us in games and we've had to pay for those. It has been a difficult start and one that we hope we can turn around pretty quickly.
"We've had a few sendings-off in games which have affected the game and ultimately we've paid the price for that so that's a few points lost. I think defensively as a team at times we've conceded sloppy goals. Hopefully now we can start defending properly and be more solid as a team. I think going forward we're still a threat, still dangerous. We just need a few things to improve on and we'll be fine."