The Git Integration for Jira app introduces the General Settings page which contains configuration options for performance and features.
Open the General settings page in the Jira Apps Management (Applications page in Jira 8 and up) to enable/disable features of the Git Integration for Jira Server/Data Center app.
The General settings configuration page can be accessed thru the following locations:
Jira dashboard menu Git ➜ Manage repositories ➜ Git Integration for Jira (sidebar) ➜ General settings.
Jira dashboard menu➜ General settings.
After making changes to the configuration settings, click Save to apply the changes.
For more details on git configuration, see Customizing Git: Git Configuration.
These settings have optimal recommended default values and works out of the box — unless further performance tweaks are needed: