skates

I have just installed OSX and then updated to Vectorworks 9.5.2. When opening an older file I find that 9.5.2 is very slow, very jerky when moving walls/lines etc.I have searched this board a have found that others are happy with the prefomance in OSX - what did I do wrong? -Helpjavascript: x()

Upon installing the vectorworks 9.5 update the renderworks portion of the program is not accessible. I have re-installed the package with no success.The program was installed with both serial numbers and at re-installation renderworks did not need to be installed because the information was "already on my hard drive". Help