I was just transferred to a brand new computer and immediately experienced random pausing/hesitation issues while trying to rotate existing or new models (using the middle mouse button).
Working with my VAR (GSC-3D), we tried numerous different things. First, our IT group had used the onboard graphics slots instead of the video card slots. We tried to dedicate the correct process on the video card. We tried using the OpenGL setting inside Solidworks.
The approach that did work... an uninstall of the .net framework and CLEAN install of solidworks/net framework. This fixed the problem for me! Thought I'd pass that on as I was unable to find any information anywhere else.
Way to go VAR's!!