Rails request throttling just half the given limit #594

Hey, I want to throttle my rails api request to 10 requests per minute. Following is the configuration I have set:

Rack::Attack.throttle("throttle_aggregate_data_per_min", limit: 10, period: 60) do |request|
  if request.path == "/v2/aggregate_data"
    get_client_id(request)
  end
end

below is the tracking configuration I have set:

Rack::Attack.track("throttle_aggregate_data_per_min", limit: 10, period: 60) do |request|
  if request.path == "/v2/aggregate_data"
    get_client_id(request)
  end
end

somehow I am able to send just 5-6 requests every minute as opposed to 10 requests that should be allowed.

rack-attack version -> 6.5
config.cache_store = :redis_store

Can someone help me what I am doing wrong.