Digital BW, The Print

I am printing some of my older images that I shot on XP1 using 
Piezography inks and my Epson 3000. I am enlarging them to 
16x20 and grain isn't an issue. The prints are looking great.
They were all shot either 6x7 or 35mm.
However, since I liked the ease of scanning and printing the XP1 
film I just shot a huge project with a Contax 6.45 using XP2 film 
which I haven't used before. 
I processed the film at a custom lab and I am trying to scan the 
film and make the same size prints.
The XP2 negatives aren't the same color or as deep a color as 
the  XP1 negatives and they are very grainy and coarse and I 
mean very grainy and very course.
When I look at the film under a loupe the grain is very obvious not 
at all the smooth look I am used to with XP1. In fact I think the 
grain is more pronounced with the XP2 film then with my Tri-X.
Does anyone have a lot of experience with XP2 who could tell me 
what is going on?

Thank you.
Regards,

T J