Ever since I upgraded from Jira 8.14 to 8.18, I am seeing the Jira DVCS Connector cause an excessive amount of requests to the GitHub API, as well as vastly overestimate the number of commits and issues in my repositories.
GitHub support has told me that Jira alone has sent more than 200,000 requests to the GitHub API in a single week, for a fairly small organization (we are 3 people in total).
In addition, the Jira DVCS Connector reports almost 30k commits and 10k issues for one of my repositories, while GitHub reports 7k commits and 250 issues total, so clearly something is off here:

I am using Jira Software Server. I have since upgraded from 8.18 to 8.18.1 (the release notes for 8.18.1 list several fixed issues with the DVCS Connector), but my issue is still present.
I have already removed my GitHub connection in the DVCS Connector altogether and set it up with a new token, to no avail.