Does not generate enough load

I am trying to generate load to test the performance of the system. I used following command. It looks like it generates max 1 metric per second.

```docker run --rm ghcr.io/krzko/otelgen:latest --otel-exporter-otlp-endpoint xxx -p http -i -r 1 metrics counter```

How can I generate more load (e.g 100K/Minute metric samples)?

