[Exemplification]

Is there a way to disable the auto uploading of events while keeping game DVR enabled?

I keep fragtagging people (yes, I'm the asshole that runs around tagging) and have uploaded like 30 things and it is annoying.

[PSN-lil_cena1999]

The clips delete by themselves after a while. But as for your question, I don't think so.

[Red Sоx]

unless you save the clips to your archive, after 30 days they're automatically deleted.