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

Well, your UI seems to be very responsive! On my MBPr the Mail App lags as s.hit scrolling trough the messsages, even if they are very only with text. Something must not be right..Did you installed EFI Update?

Btw: Wich app do you use for programming?

I installed all the updates they have.

Its Visual Studio 2012.

This is interesting, I hooked up my rMBP to a Thunderbolt Display and there doesn't seem to be any lag issues whatsoever. Everything from Photoshop to Safari to iPhoto, all inertia scrolls glide like ice on this screen. This again proves to show that there's a software/firmware issue that needs to be addressed.

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Update: I stand corrected. Scrolling works if I close the laptop lid and use the Thunderbolt Display as a standalone screen. If I use it as a dual screen (clamshell lid open) I get some pretty funky screen artifacts plus I can't scroll at all!

Message was edited by: Wayne Chin

When I use my rMBP with an iMac in Target Display mode with a TB cable, it still has lags...

I made a comparison scrolling in Facebooks website; W7 in Paralells (retina compatible) - OSX:

OSX

Safari: lags

Chrome: lags, but clearly better than Safari, and almost acceptable

W7 in Paralells

Chrome: lags even more than Safari in OSX.

Here to relax some MBPr owners , my new 11,6 macbook air is also facing UI lag. it's not so anoying like retina display , but i suppose it just because the screen definiton is so much higher compare to my macbook air , so every small glitch are much more amplified. For sure i didn't face it before so a simple software update will certainly clear this up

Hi Guy

i'm not crazy, but my 2012 macbook 11,6 really lag by now , and feel it much more for the last few days.

Mission control , Safari , Mail . the crazyness is , it's not constant , it come , it gone , it come . impossible to identify the issue. SMC reset , PRAM reset , full onyx cleaning , nothing fix it.

i'm using my MBair with a thunderbolt display most of the time.

I can tell tah in Parallels witn Windows 8 onboard in IE (metro version) FB scrolling much much smother then in any browser under ML. In Windows 8 I have font zooming to 199% (it was used automatically) and resolution of screen 2880x....

When you use TV or iMac as your main screen you could see no lag any, because their are not retina screens and graphic card no need to make down scale every seconds.

Try go to 'System Preferences' app, then to 'Sharing'; disable the option 'Screen Sharing'. Make sure its status turns to off. Restart your machine.

Sincerely.

poidet wrote:

 

When you use TV or iMac as your main screen you could see no lag any, because their are not retina screens and graphic card no need to make down scale every seconds.

I do use an iMac as external monitor and it still has these lags !  Maybe is it necessary to turn completely off the macbook pro's screen ? I don't know how to do... without closing the mac himself !

I now have 3 displays connected to my rMBP, plus the retina display. No lag at all... The lag thing seems to be extremly random because when I had the lag, I did not have any displays connencted.

I replaced my rMBP's motherboard today, and the new motherboard seems a lot more responsive. Not as snappy as a standard resolution MBP, but better than before. I'll do some further testing and let you peeps know.

Would reccoment avoiding the new Safari update. Really bad scroll lag since installing on many sites that it had dissapeared on. Still present after a restart.

I'd avoid Safari altogether. It's a miserable excuse for a browser. Text box anomalies, gifs don't load correctly / at all, scrolling lag, broken borders (disappearing / reappearing boxes in Gmail, Amazon, etc.). I honestly have a better experience using Internet Explorer, and that's just sad. Go Chrome.

I can't believe it's 2012 and we are still having Browser issues.  We were supposed to have flying cars by now and we can't even figure out how to make an animated GIF display correctly!?