Lighten your .pkg and .bdl files under creo direct/modeling 19.0

Hello everyone,

Quick question for users of PTC Creo direct/modeling software: Do you have a trick or script to quickly lighten an assembly (.pkg or .bdl)?

Indeed, I often find myself with sets that are almost 800 / 900 MB on Creo, and this not only burdens the operations (10/20 minutes for an update) on this software, but also my hard drive... So I'm looking for an effective way to lighten my blends.