Villain was like 20/20 over 20 hands. Unknown yes but he's raising every hand he plays. Reasonable?? Or should I just fold pre?

$0.12/$0.25 No Limit Holdem
10 players
Converted at weaktight.com

Stacks:
UTG ($8.84)
UTG 1 ($6.09)
UTG 2 ($14.36)
MP1 ($22.71)
MP2 ($22.22)
MP3 ($14.56)
CO ($24.63)
BTN ($16.38)
SB ($22.39)
Hero ($25.98)

Pre-flop: ($0.37, 10 players) Hero is BB
5 folds, MP3 raises to $0.75, 3 folds, Hero raises to $2.5, MP3 calls $1.75

Flop: ($5.12, 2 players)
Hero bets $3.45, 1 fold

Final Pot: $8.57

Hero wins $8.32 ( won $2.37 )
MP3 lost -$2.50