Winger says Tottenham's confidence is growing as they stretched their unbeaten run to seven games in the Premier League.
Gareth Bale lauds red hot Spurs after 'outstanding' win
The winger scored a goal in each half at White Hart Lane and Rafael van der Vaart also found the back of the net to equal the club's record of scoring in five successive league games.
Jay Bothroyd pulled one back for the visitors in the second half but Tottenham were in commanding form and move up to fifth in the table.
"It's just good to get goals and the three points that lifts us into the top six," Bale told Sky Sports One.
"It was a great team performance today.
Bale scored his second goal, a superb strike from the edge of the box, to steady the home fans' nerves in the 72nd minute. "They were just starting to come on top and putting a bit of pressure on us and it was a very important goal," he said.
"The confidence is growing. We've been playing well and concentrating on our own football. Scoring goals is part of our game and we've been doing that."
Man-of-the-match Scott Parker is backing Tottenham to do well this season as they continue to string good performances together.
"I think they came out in the second half and put us under a bit of pressure but overall we fully deserved the win," Parker said.
"I'm enjoying it immensely and playing alongside players like Gareth and winning games is nice as well. We can go places this year if we believe in ourselves and I'm looking forward to the rest of the season."
Harry Redknapp, the Spurs manager, hailed his "outstanding" team after the win.
"It was a fantastic performance," he said. "In the first half we played some great football ... the movement and passing was incredible.
"They changed how they played, got it forward and played with more intensity in the second half but Gareth finished them off with a great goal.
"Suddenly they got a lifeline at 2-1 and it changes games so that third goal was important. I said at half time we shouldn't relax in the second half but, to be fair to them, they came out and raised their game.
"Overall we were outstanding today."
Neil Warnock, the QPR manager, told Sky Sports News: "We gave them a game in the second half. [At half time] we said 'let's try to get the next goal'.
"We probably respected them a bit too much in the first half.
"It was nice to see them get a bit figdgety on the bench at 2-1."