My 50 NL game at the moment apparently has alot to be desired (speaking from the results i've been getting). Could these hero laydowns be why?

Party Poker, $0.25/$0.50 NL Hold'em Cash Game, 5 Players
LeggoPoker.com Hand History Converter

BB: $41.24
UTG: $57.61
Hero (CO): $86.46
BTN: $23.82
SB: $48

Pre-Flop: 2 2 dealt to Hero (CO)
UTG folds, Hero raises to $2, BTN folds, SB calls $1.75, BB folds

Flop: ($4.50) 5 T 2 (2 Players)
SB bets $2, Hero raises to $5, SB calls $3

Turn: ($14.50) 6 (2 Players)
SB bets $2, Hero raises to $10, SB calls $8

River: ($34.50) K (2 Players)
SB bets $31 and is All-In, Hero folds

Results: $34.50 Pot
SB mucked and WON $63.78 (+$46.78 NET)

Raise more each street? FWIW he insta called every time. Villain running 27/18 but haven't seen him show down anything at this table yet.

Clar