You can simply try keystore-bench with more threads to
see if it scales this way.
Keystore id 'thales', type PKCS #11, threads 20
Algorithm Sigs/sec
RSASHA256 571
ECDSAP256SHA256 444
Those who don't read the docs (in spite of having submitted a patch to the
documentation of exactly that command yesterday!!!) will be punished.
Thanks, Daniel.
-JP