This question already has an answer here:
I started using Photoshop to create digital drawings. Whenever I try to draw with the brush, it comes out blurry and pixelated. When I zoom in, I can see the pixels that made up the brush stroke. I tried using different brushes (Photoshop default brushes and user created) but they all have a blurry look. I put the hardness to 100% but it still looks blurry. I tried using different canvas sizes, but that doesn't fix the problem. How do I fix this to create smooth brush strokes (without pen tool)?
Example of a blurry/pixelated brush stroke whenever the brush is used
(Zoomed in) Pixels that make up the brush stroke
Brush with spacing 1% and resolution at 200 (still pixelated)