3! OOP BB vs BTN

How do you play this differently?

UTG: $1.78 (35.6 bb)
MP: $10.37 (207.4 bb)
CO: $5.81 (116.2 bb)
BTN: $5.00 (100 bb)
SB: $5.00 (100 bb)
Hero (BB): $5.15 (103 bb)

SB posts $0.02, Hero posts BB $0.05

Pre Flop: (pot: $0.07) Hero has A♣ A♠ A♦ 5♠
3 folds, BTN raises to $0.17, fold, Hero raises to $0.53, BTN calls $0.36

Flop: ($1.08, 2 players) K♠ K♦ 8♥
Hero checks, BTN checks

Turn: ($1.08, 2 players) 2♠
Hero checks, BTN bets $0.39, Hero calls $0.39

River: ($1.86, 2 players) 2♥
Hero checks, BTN bets $1.30, Hero folds

Results: $1.86 pot ($0.07 rake)
Final Board: K♠ K♦ 8♥ 2♠ 2♥

BTN wins $1.77