Large edrawing assemblies really slow and laggy

Saving large assemblies as an eassembly not working well. When opening eassembly to view assembly, it is very slow opening, and when it does open, its almost impossible to move it around screen. It moves really slow, or just really jerky. I am running Solidworks 2016. We just upgraded from 2014 about 5 months ago, and we still can not get a fix for this issue.

SolidworksEdrawings