How to delete some superseded cache automatically

I want to save my bigfix server resource.
So I hope that I delete some superseded cache from bigfix server automatically .
If you have any idea ,please tell me.

Because monthly MS security patch (Windows 10 ) is too big (more than 1GB).


The BigFix server and relays automatically manage their own caches – no manual management should occur.

Once there is a demand to store new content the old content will be automatically removed.