I'm writing the documentation for a WordPress theme project that I've been working on for a long time. The theme is usable and stable enough for release. I'm releasing it, plus its documentation and tutorials for free but am charging for support/customization. However, there are some issues with the code (optimization, mostly) that I've been unable to resolve after months of trying. While I've learned a lot about PHP while doing this project, I'm still a novice and I want people to know that I'm aware that my code has these specific issues, and that with support (via donations or them purchasing support from me), I might be able to hire someone in the future to fix these problems.
My question is, should I include a disclaimer that basically states what I just said above in the documentation? So that people are aware right from the start that while my product is usable and I'm confident in it, it still has these known issues that were beyond my skill level to fix? Non-coders would probably not notice the issues much, but more advanced people in the community may...
...or would it be best to not mention the known issues or my novice skill level at all, and wait to see if people bring them up?