How can I add worker nodes to a single node OC

I have this error when i try to deploy in a Windows Platform using oc CLI tools
FailedGetResourceMetric horizontalpodautoscaler/sas-workflow-manager-app failed to get cpu utilization: unable to get metrics for resource cpu: no metrics returned from resource metrics API

I assumed that is because there is just one node trying to do all the workload.

Capacity:
cpu: 4
ephemeral-storage: 31914988Ki
hugepages-1Gi: 0
hugepages-2Mi: 0
memory: 14970688Ki
pods: 250
Allocatable:
cpu: 3800m
ephemeral-storage: 29045851293
hugepages-1Gi: 0
hugepages-2Mi: 0
memory: 14509888Ki
pods: 250

PS C:\crc-windows-installer> oc describe node crc-n5gv4-master-0
Name: crc-n5gv4-master-0
Roles: control-plane,master,worker

Is there an easy way to add more nodes to offload the load?