Postby ESP_Sprite » Tue Sep 29, 2020 2:17 pm
Probably. You're using a camera and optics that cost like US$1.50 in total, and you're trying to use it in low-light conditions with a light source that seems to have some 50/60/100/120Hz flicker. I'm sure the JPEG encoder does its very best to give you a great representation of what the sensor reads, but the sensor itself only is a tiny bit of silicon, so what it reads is not that great to begin with.
If you want a better image, try taking it outside in broad daylight and a lot of the graininess and blotchiness should go away, but keep in mind you didn't buy a DSLR here.