Ghostscript issue when parallel processing

Good afternoon everyone,

I have a problem because I find two different behaviours in two servers
using GhostScript 9.14

The first server has 2x2GHz processors (12 physical cores, 24 logical) 144
GB RAM

The second has 4x2.3GHz processors (48 physical cores, 96 logical) 512 GB
RAM

Both are running a Windows Server 2012 R2.

When I proceed to try sequencial processing (one by one) the second
processor is faster, as it is expected. But when we try parallel processing
(several threads at same time) the second processor deteriorates more (in
time) than the first. As much open threads, much is the difference between
the first and the second.

Anyone has some idea of what can be happening?

Thanks all in advance,

Best Regards,

Héctor Martínez