This is a post by Cat McClintock on PTC site.
If you work with large assemblies, you know it can take a lot of time for files to load. And, ironically, it’s not just aircraft and automobiles weighing down systems. Complex assemblies can include small medical devices or even vacuum cleaners—anything with lots of parts!
The good news is that no matter your product line, you don’t have to wait to get to work on your large assemblies…if you use these techniques available in Creo Parametric.