It's impossible to answer this properly without seeing your site. With that in mind, here are a few thoughts:
1. Features don't matter in the abstract. You can succeed with fewer features by being, for example, simpler. That's the 37signals "do less" line. You say features are crucial for your white-label solution. Are you so sure? Why do you think this is? How do you know this is why you are losing customers? ("Clearly" is a dangerous word). Who do you think your customers are? What if your customers were somebody else? (See point 3).
2. "...even though their price point is higher..." - this suggests you don't know that high price is often precisely why customers choose things. High prices suggest high quality, and in the absence of other ways of distinguishing between products, it's a very easy one for people to follow. Perhaps you charge so little that you give the impression of not being serious? And, relatedly, perhaps if you charged more you would be able to spend more to acquire users?
3. Pick a niche and own it. If your site works for user types X, Y and Z, just pick some subset of X to go after. Your product will be more targeted to them, which makes it easier for them to see it as something they could use, and it also should make it easier for you to market. See, for example, the many sites that offer build-your-own-websites for photographers, as opposed to simply just build-your-own-websites for everybody.
4. Win on design, on copywriting, on user experience, on humour, on speed, on sociality, on security, on reliability, on locality, on trust, on friendliness. Win on anything that's not what you can't win on. On the internet, there's room for more than one winner.
But, like I said, if we could see your site you'll get better answers.