As Jan said, you have the power to make things better. If you love the product and want it to succeed, step up and try to make things better. Talk to your CEO/CTO and tell them about the problems you are facing. Let them know that you are trying to fix things and you need their help to make it happen. Remember that there should always be clear communication and clarity of thoughts in a company.
Stay there for a little longer and if things don't get better you may need to think of alternatives.