I can't find any metrics about POD response time and requests per minute. Can I measure it without logging everything on my loadbalancers?
Kubernetes doesn't support response time metrics natively. You can grab them via prometheus if your pod exports them (e.g. you have apache or nginx as front-end controller in the pod). Or you can deploy service mesh with proxies like Istio or Linkerd to collect such metrics: Linkerd Istio