How do I increase the kdc connection concurrency

[roy liang]

my freeipa 4.8   kdc5 1.13.2

How do I increase the connection concurrency of kdc? It is found that kdc processes are
blocked when the network traffic is heavy, but the physical resource usage of the server
is low.
1: Can you increase krb5kdc numworkers? I check that the default value is 32.
ps -ef | grep krb
....
/usr/sbin/krb5kdc -w 32 -P /var/run/krb5-kdc.pid
.....

2: kdc_max_tcp_connections Whether this configuration is valid, and whether the number of
UDP and TCP connections of the kdc is limited?How to make it bigger, I looked up the
relevant documents, but did not get the relevant documents clearly explain.
Request guidance, thank you!