The USA international joined Spurs from London rivals Fulham in the summer but has failed to make anywhere near the impact he continually made at Craven Cottage.
Dempsey has been needed to step into the gaping hole left by Rafael van der Vaart in an attacking midfield position and he suggests he is just coming to terms with that now.
"I've been frustrated with not getting on the ball, being in the game or affecting games, but I think I'm now starting to do a better job," Dempsey said in the wake of Spurs’ 3-1 victory over West Ham United on Sunday.
"It was a difficult August for me. I didn't have a pre-season with Tottenham or anybody, so I'm trying to play catch-up a little bit and trying to adjust to this team and the style they play.
"I've been looking at videos and trying to figure out a way to make an impact and help the team.
"I'm traditionally used to playing in a 4-4-2 where I'm the guy on the left but I'm not an out-and-out winger.
"I come inside and I'm more like an attacking inside-left, so being more central is good, but it's about getting on the ball and making the right movements, and I'm starting to do a better job in that respect."