you are not alone, my NP1 has blurry images.
After the nothing os 2.5.2 update, the main camera (1x zoom) has got only blurry images, and the performance in low-light has been even worse. I raised this issue on twitter, got no reply from nothing’s customer team. That alone says a lot about their professionalism because they are busy with 2a, and I am sure it will also develop performance issues.
**no one has any time for NP1 users anymore, and the camera quality being degraded is just one example.
PS: The glyph composer does not have swedish media house and sympha ringtones anymore either!**