don't know if you care for any criticism regarding other streets but i'd punish the UTG limper with 88 100% of the time. Get him HU and fire on flop and turn and bet/fold river.

as played, when you call here, you're going to be up against a straight and/or flush often enough that I think it's not a big mistake to fold. In fact, as passive as villain is a fold is prob your best line.

just my 2 cents fwiw.