How do I make voicebanks have less of a metallic sound

[Cherreem]

Ok,so I am trying to use Yamine Renri,and her voice has a metallic sound to it
I am aware it's probably the fault of the VB it self,but are there any flags,or methods that could help her sound a bit better?
Here's the UST I was trying to work on when I noticed this(I did add the F-30 flag to the notes,but it wasn't very effective)
https://ufile.io/pye0g

 

[Avalia-Kasa]

try a different resampler, some will make it metallic regardless of how good the samples are

 

[fukaa]

Reset the ust,Use differnt samplers,use Consonant velocity etc...