Anyone running RHEL 8x/9x SSSD authentication against eDir 9.x

We have been moving all our RHEL 7.9 servers to 8.x or 9.3 and they are all configured with SSSD to authenication users against our edirectory authentication tree.    We have noticed that since the number of 8.x/9.x servers has increased the load on our eDirectory ldap servers has gone through the roof and we have had to basically double processors in order to keep the load average on the boxes in the 7's from being in the 14's.     Just curious if anyone else has gone through a similar change in their environment and what they ended up doing to resolve.