Grin node taking high CPU load

I’m running some nodes for GRIN and notice that the grin process taking so much CPU resource (compared to zcash or monero) .
This is because of the code optimization or hashing algorithm? I do not mine within grin node.
Any ideas?


More peers more cpu

20190627 11:48:53.471 DEBUG grin_servers::grin::seed - monitor_peers: on, 183 connected (160 most_work). all 4631 = 182 healthy + 3 banned + 4446 defunct


20190626 23:24:30.723 INFO grin - This is Grin version 1.1.1-beta.1

Update to last version