Slow Appearing Commits from BitBucket or GitHub in JIRA

[Gaven Ray]

I am trying to follow the instructions here to setup webhooks manually in GitHub and running into a few questions. 

https://confluence.atlassian.com/jirakb/slow-appearing-commits-from-bitbucket-or-github-in-jira-779160823.html

We are seeing the same issue in JIRA 7.3.7.

Our GitHub connections seem to be pulling one request every 2 seconds which would be great if we only had a small number of repositories. 

Where it lists your instance is it talking JIRA or GitHub instance? 

Is there a limit to the number of DVCS links one should have? We have 12 with many repositories under each.