Bad texturing of simplified model - blurry triangels on high detail parts whan Mosaic Based texturing

Hi,
I’m getting some blurry triangles on a simplified model when using mosaic based texturing.
Example:


It looks ok when i’m using Geometric but the quality is so much better with mosaic based.
These are my unwrap settings:


The value for “Large triangle removal threshold” should be ok?
I have’nt seen this problem in high detail areas before, any advice would be appreciated.