pc getting slow while working on large assemblies

dear sir,

we are working with large assemblies in solidworks. when we work on certain layouts of size 100 mb, pc hanging, windows stopping the application. also certain drawings will take 10 minutes to open.

we are using intel core i5-3470 @3.20 ghz processor, 16 gb ram, nvidia quadro k 600 1 gb graphics card with 64 bit win 7 os.

i want to know wether our specs is not enough for large assemblies in solidworks . if so pls mention a best spec for solidworks .

SolidworksAssemblies