Toolbox Import and configure very slow

Hello Everyone

I am using SolidWorks 2012.

I have this problem. I am trying to make an assembly of gears to accomplish a task.

When I import the gears from toolbox, SolidWorks is taking a lot of time to configure the component. To change one property of the gear, I need to wait 2 min.

I use a 6GB ram PC and 1 gb ATI radeon hd graphic card and i5 processor.

I don't know the reason for this slow speed.

Please help me how to avoid this slow speed and work smoothly.

Thank you

Regards

Siva

SolidworksToolbox