NL50. A 3 [A 3 3]. Slowplay?

Poker Stars
No Limit Holdem Ring game
Blinds: $0.25/$0.50
6 players

Stack sizes:
UTG: $73.95
UTG+1: $27.30
CO: $44.20
Button: $64.95
SB: $20.25
Hero: $82.35

Pre-flop: (6 players) Hero is BB with A3
UTG calls, 2 folds, Button raises to $2, SB calls, Hero calls, UTG calls.

Flop: 33A($8, 4 players)
SB checks, Hero checks, UTG checks, Button checks.

Turn: 8 ($8, 4 players)

SB bets $2, Hero calls, UTG folds, Button calls.

River: J ($14, 3 players)

SB bets $4,Hero raises to $15, Button raises to $34, SB calls all-in $12.25 ,Hero raises all-in $78.35, Button calls all-in $26.95.

Uncalled bets: $17.4 returned to Hero.

Results:
Final pot: $107.45