When 6000 Cirros VMS are configured on the system (not running), it takes ~11 seconds for the Home -> Overview and Virtualization -> VirtualMachines pages to load.
To avoid unrelated network traffic, the test was conducted inside the lab private network, on the base station server, with Selenium.

oc get csv -n openshift-cnv
NAME                                          DISPLAY                          VERSION      REPLACES                                      PHASE
kubevirt-hyperconverged-operator.4.18.0-800   OpenShift Virtualization         4.18.0-800   kubevirt-hyperconverged-operator.4.18.0-797   Succeeded
node-healthcheck-operator.v0.9.0              Node Health Check Operator       0.9.0        node-healthcheck-operator.v0.8.2              Succeeded
self-node-remediation.v0.10.0                 Self Node Remediation Operator   0.10.0       self-node-remediation.v0.9.0                  Succeeded

Always

1. Create a lab with 27 servers
2. Create 6000 cirros VMS
3. Enter the consle to Home -> Overview and Virtualization -> VirtualMachines pages

The page load time is ~11 seconds

The page load time will be short