I just bought Adobe CS6 Design & Web Premium and have opened Photoshop for the first time. It is operating extremely slow for some reason. When I look at my system information, it seems that I have enough hard drive space. The efficiency monitor on Photoshop is at 100%, and despite all of this it takes almost 10 minutes for me to apply something as simple as a gradient, then another 3 to 5 minutes for the actual gradient to show up on the whole image. I don't have any other apps open except for safari and I only have one window open on it. I have 4 GB of memory on my mac and it says I have 359 GB free out of 499 GB available. Can someone please tell me why it is running so slow?