Hello,
the extension needs a stream of data to track stats and what users are doing and visiting on the site. Without that stream the stats tracking would not be possible. The database is used to store tracked data, this happens in the frontend of the site not in the backend unless you are monitoring the realtime stats.
If you have problem of resources on your server, you can reduce the number of queries and the data stream using the parameter in the configuration as shown in the screenshot attached.
Otherwise simply add an exception for this traffic because it's not a brute force attack .
Greetings,
John