Brush Stroke is different across model

Hello,
can someone point me in the right direction?
The mesh was auto UV unwrapped in Substance, and Im trying to paint in the eye shadow. But the paint stroke is super blurry in some parts and sharp in other parts. I've illustrated the issue by painting a diagonal line across the face. You can see the line is varying thickness across different parts of the model.
How can I get the paintbrush strokes to remain constant across the entire model??


