I upgraded from 10.10.5 to 10.11 on my mid 2014 rmbp with dgpu from the mac app store and now i am experiencing freezing. When i am browsing the web the pointer becomes unresponsive an i'm unable to click on anything for about 30 secs then it will unfreeze and i can resume. When its unresponsive i am still able to move the pointer around but not click. Why is this happening? Are anyone of you guys experiencing this?