Fold this preflop.

limping and over limping is going to have you facing these isolation raises all the time. Maybe if you were in a later position yourself and had infoz that you could get away with limping behind, like on button and blinds are passive morans. Or you could iso the bad player yourself. But limping behind from UTG1 is no go.

Also, he may have had another 9.40 behind but u did not.