You should double check that the fund is the best deal out of the offered funds (basically the shiniest turd in the pile). Check to make sure there is no other offering that is a wide based stock with a lower expense ratio.
If there is, switch to that one. If not, stick with what you've got and make a polite plea to your company to really, really consider switching to a better retirement company (like Vanguard!). Explain how their 3% match isn't a really great deal since most of that match is eaten up by the fund operating expenses, and there are waaaaay better choices out there that would benefit everyone in your company and make them look even more attractive and smart for offering them (like Vanguard! Mention this as often as you can).
But basically, the advice is to find the best crappy fund available, hold your nose and keep investing in it according to the investing order
. You're still getting the benefit of pre-taxed investing and even with it being bad, it's still going to be better than not investing at all. You get the 2-fold advantage: one, that you get to pull money out of your paycheck and reduce your taxable income right now; and two, that you're investing that money for growth for the future.
But do ask about better investing opportunities. Sometimes all it takes is a polite but persistent ask to get things on someone's radar and take action. (and did you mean January of 2018? 2017 is already done and gone)