If you're getting that low of a response rate, then I would suggest either revising your profile, updating your pictures, changing the type of people you are messaging, or changing what you are saying in your messages. Obviously something that you're doing isn't working, so the key is figuring out what that is (and honestly, it is probably a multitude of factors) and working towards a solution. When I first started out with online dating, I had a pretty terrible profile but I still had like a 25% response rate to messages, largely because I was selective in who I messaged and managed to say interesting things. I'd be more than happy to give input/suggestions on your profile if you're comfortable sharing it.
The key thing to keep in mind with dating, in my opinion, is that you have to give people a reason to want to get to know you. For me, I do that mostly by trying to keep my life interesting/varied by participating in a variety of activities that I enjoy.