Tim Mitchell has a script which replaces [internal].[cleanup_server_retention_window] in the SSISDB database:
Earlier this week, I blogged about the automatic cleanup process that purges old data from the SSIS catalog logging tables. This nightly process removes data for operations that are older than 365 days. While this is useful, many SSIS admins have complained that this process is very slow and contentious on large or busy SSISDB databases.
In this post, I’ll show to you one of the main reasons this purge process is slow, and will share a more efficient way of performing this delete operation.
Click through for the script and explanation.