Hello everyone. I've received my brand new MBP and this is my first time moving to OS X. Surprisingly, I've notice some UI lag during simple tasks like maximizing windows, scrolling up/down, moving windows, etc. I've searched for some information about this and it seems I'm not the only one getting this. Some claim that it can be software issue, while others say that Apple didn't probably think retina displays would require so much from a MB. I would like to know what you guys think about it and what can I do (If I actually can do anything) in order to have my MBP nice and smooth.