I found the solution. If anyone else has the same issue, follow the link and complete the steps for the second method https://helpx.adobe.com/photoshop/kb/photoshop-menus-turn-white-mac.html
Hello, I just purchased a new MacBook Pro and my tools (ie. brush, lasso tool etc) in photoshop cs6 severely lag when using my Wacom intuos pro tablet. I never had this issue on my old/outdated Mac desktop. When I use the trackpad, there is no lag, only when I use my tablet. I can't seem to find a solution and was hoping you might have some idea. Please help!! I'm about to break this damn machine ??