I have a large assembly approximatly 50MB, i can no longer open this without using design review mode and even when i have it opened it crashes very easily when doing the simplest tasks. I have other assemblies that are not a large are they work perfectly. I can no longer open design drawings referencing the large assembly without it crashing.

I am currently using:

Solidworks 2013 SP.4.0

Intel i7 @ 3.4GHz

32 GB RAM