There shouldn't be that many SCCs, but we need to see what's present and when to debug pod creation latency.
Verified with OCP build 4.5.0-0.nightly-2020-03-17-213400, the related resource securitycontextconstraints is already in.
$ oc get co/kube-apiserver -o json | jq .status.relatedObjects
$ oc describe co/kube-apiserver | grep -A2 'security.openshift.io'
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.