10NL QQ on paired board

[Gospy]

Full Tilt Poker, $0.05/$0.10 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

CO: $10
BTN: $0.80
Hero (SB): $11.40
BB: $4.35
UTG: $4.95
MP: $9.85

Pre-Flop: Q[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/club.gif[/img] dealt to Hero (SB)
UTG calls $0.10, 3 folds, <font color="red">Hero raises to $0.50</font>, BB calls $0.40, UTG calls $0.40

Flop: ($1.50) 5[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img] (3 Players)
<font color="red">Hero bets $1.50</font>, BB folds, UTG calls $1.50

Turn: ($4.50) 3[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $3</font>, UTG calls $2.95 and is All-In

River: ($10.40) 7[img]/images/graemlins/heart.gif[/img] (2 Players - 1 is All-In)

This guy was 57/18/.5 over 70 hands.

I have noticed a lot of my big hands have been overpairs on paired boards. Is it a good idea to slow down after he calls the flop, or keep betting? And I ask this question not only for this particular instance, but in the case that the villain has a full stack.