The funds are actually not that bad for actively managed funds. I certainly have seen a lot worse in these plans. Take a look at the hypothetical growth of $10,000 charts on a few of these and I think you will be pleasantly surprised. The two T Rowe Price funds are decent. I have had both American Funds options, they are ok, or at least they were 10 years ago. Wellesley is income oriented, with 60 percent bonds and 40 percent dividend oriented stocks. That's a good balanced fund at an unbeatable price, but it's too much in bonds it to be the only choice for someone your age.. Heartland has run some decent funds, but I've never checked this one out. It's worth a look.
My guess is Prudential is your plan provider. There are probably some account maintenance fees somewhere. Watch out for the annuity sales pitch if the Prudential "advisor" offers to meet with you.