title: Github API extremely slow request with Octokit
body: <p>trying to query the github api with octokit, 
  I have the following function which takes 3-4 minutes, does anyone see an obvious problem for why it takes so slow ? 
   I'm trying to find the top contributors within an organization, by looping through each repo in the organization, and from there checking the top contributors for the repo and afterwards sorting.</p>
  
  <pre><code>def get_top_internal(client)
      repos = client.org_repos(params[:org])
      contributor_count_hash = Hash.new(0)
      contributors = []
      repos.each do |repo|
        contributors = client.contributors(repo.full_name,anon=true,per_page:10)
        contributors.each do |contributor|
          contributor_count_hash[contributor.login] += contributor.contributions
        end
      end
      sorted = contributor_count_hash.sort_by {|arr| arr[1]}
      sorted = sorted.slice!(-5..-1)
  
      user_names = sorted.map {|arr| arr[0]}
      debugger
      return_array = contributors.select {|user| user_names.include? user[:login]}
    end
  </code></pre>