Mountain Lion UI Lag on rMBP !!! (Let's Make this thread serious and hope for a fix)

I personally think the UI lagging bug is a serious issue on rMBP because this machine cost $2000 and up and it lags on UI features such as Mission Control and Space Switching while classic Macbook pros don't. I do understand that the retina display models carries a high resolution display, but I think the quad core CPU should have the ability to handle it (please correct me if I am wrong)



I am hoping and asking anyone experiencing the issue to follow up with this thread and post your concerns. Let's hope for a fix soon and we can really enjoy the beauty a Retina Macbook Pro brings to us.

MacBook Pro with Retina display, OS X Mountain Lion

Posted on Jul 27, 2012 7:26 PM

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1,322 replies

Mar 16, 2013 2:01 PM in response to cbs20

I just installed the new SMC 1.1, and 10.8.3,

I never had much problems with my 15" retina (2.3ghz, 8gb ram), there were indeed some glitches that appeared on the launchpad (back buffer appears after opening and closing a folder) and some laggyness in safari.

but other than that it was pretty good.


I did notice that SMC 1.1 fixes the launchpad problem (no back buffer stuck on my screen, rather I see a flash of back buffer that disappears in an instant if you really focus your eyes on it and sometimes it doesn't at all).


Safari experience is a bit better, less laggyness than it used to be, but still block jumps you if you scrolls really fast.


So far experience is better on my machine.


Also I don't have any gfx switcher, and never used one on my rMBP.


@cbs20,

why would you want to shut down your machine!? My rMBP haven't been shut down in months now, just for this update actually....

Mar 17, 2013 7:19 PM in response to Geneous

It does make me think that yeh , but I'm not even sure how much mine differs from the previous model to be honest. All I know is that Apple were kind enough (a part they got really right!!) to cancel my old order and give me the new one which has 2.7ghz cpu compared to the 2.6ghz i ordered before, and the price dropped a little - did the gpu change? I have, NVIDIA GeForce GT 650M 1024 MB....... and always have Automatic Graphics switched off.


Who ever said they're not going to do a recall I think you're spot on, but this machine definitely isnt right.


Anyone have a well educated guess as to when 10.9 might be coming out?!

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Mountain Lion UI Lag on rMBP !!! (Let's Make this thread serious and hope for a fix)

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