Before we dive into troubleshooting and optimization, here is the verified, official driver source.
To understand the N5 phenomenon, you have to travel back to the early 2010s. The rise of budget e-commerce platforms like AliExpress, Wish, and early Amazon third-party sellers flooded the market with generic, white-label hardware. Among the most popular was a no-name, glossy-black webcam. It had a flimsy clip, a 2-megapixel sensor that interpolated to 5MP, and a microphone that sounded like a dial-up modem gargling gravel. n5 webcam driver link