A limited but growing number of 2015 MacBook Pro users have turned to the MacRumors discussion forums with complaints about user interface lag on OS X Yosemite. The lag results in slow or choppy animations and graphics across multiple areas of OS X, including opening Mission Control or Launchpad, launching full-size applications, resizing windows and scrolling through web pages.


A pair of threads related to the issue have received close to 200 replies and 20,000 views within the discussion forums, with some users that previously experienced UI lag offering advice on how to resolve the problem. One potential solution involves resetting the Mac's PRAM, while temporary workarounds listed include increasing contrast and reducing transparency under the Accessibility menu in System Preferences.

Forum Discussion Threads

  1. " 2015 Macbook Pro's Intel Iris 6100 is so choppy in Yosemite" posted by cookies!
  2. "2015 rMBP problems: 5-6 hours of battery life & major UI lag" posted by Youhoney

It is worth noting that new Macs may experience slower performance after booting up for the first few times as the computer indexes. It is also recommended that affected users perform a clean installation of OS X Yosemite to ensure that the issues are not the result of restoring from a backup. But the issues persist for some, with MacRumors forum member "cookies!" claiming that his 2015 MacBook Pro has "the most significant lag" of "any laptop on Yosemite" he's ever used.

"I know that Retina displays are taxing on GPUs, but the Intel 6000 series seems incapable of driving this display without extreme choppiness in Yosemite for a number of actions— Mission Control, switching between windows, opening new windows, etc," reads a post in the MacRumors forums. "This is the most significant lag I've experienced on any laptop on Yosemite. My old 2010 Macbook Pro 13" doesn't lag this bad on Yosemite."

While complaints of user interface lag have resurfaced following Apple's release of the 2015 MacBook Pro, similar issues have been reported in the Apple Support Communities, Reddit, Stack Exchange and MacRumors discussion forums by owners of 13" and 15" mid-2012 through mid-2014 Retina MacBook Pro models. The problems appear to be mainly limited to notebooks running OS X Yosemite.

Top Rated Comments

paul00 Avatar
98 months ago
The answer is to turn on Reduce Transparency under Accessibility.

After that, I've had no more lag on my rMBP 2012 . . .

Looks ugly though. One of the most important aspects of Yosemite's design was transparency and yet even the top laptops in Apple's range (i.e. quad i7 & dedicated GPU) can't handle it? That's ridiculous. It's like getting a ferrari and saying "just drive below 60mph otherwise it gets really unstable."
Score: 13 Votes (Like | Disagree)
elmateo487 Avatar
98 months ago
i don't get it HD5100 is more capable than HD6100 ?

More likely shoddy drivers. Or interaction with the drivers.
Score: 9 Votes (Like | Disagree)
Avenged110 Avatar
98 months ago
UI lag? I thought it was called Yosemite...
Score: 7 Votes (Like | Disagree)
Miguel Cunha Avatar
98 months ago
Lightroom on Yosemite vs Lightroom on Windows 8.1 (same computer via bootcamp) is light and day.

You meant "night and day", right?
Score: 6 Votes (Like | Disagree)
paul00 Avatar
98 months ago
Funny. My 3 years old original 15 Retina Macbook Pro is still waiting for a miracle update that will finally make it work like it's supposed to. It's still laggy, safari falls apart all the time, using scaled resolution makes it really unresponsive and many apps are just way too slow. Lightroom on Yosemite vs Lightroom on Windows 8.1 (same computer via bootcamp) is light and day. I really can't imagine what using the new macbook is going to be like...
Score: 5 Votes (Like | Disagree)
snorkelman Avatar
98 months ago
Looks ugly though. One of the most important aspects of Yosemite's design was transparency and yet even the top laptops in Apple's range (i.e. quad i7 & dedicated GPU) can't handle it?"
Always found it laggy on 2012 rMBP regardless of those settings - opening folders on the desktop is one that's embarrassingly clunky

my current use of yosemite amounts to:

Open lid on late 2012 rMBP
download and install latest build
open a few folders on desktop
shake head
close lid
stick back in drawer till next build gets released
Score: 4 Votes (Like | Disagree)

Popular Stories

AirPods Max 2022 Colors

Ten Things AirPods Pro 2 Tell Us About AirPods Max 2

Saturday September 24, 2022 1:00 am PDT by
Upon the release of the second-generation AirPods Pro, the AirPods Max became the oldest current-generation AirPods product still in Apple's lineup. Introducing several new features like Adaptive Transparency and the H2 chip, the second-generation AirPods Pro may provide some of the best indications yet of what to expect from the second-generation AirPods Max. Almost two years later, rumors...
apple watch series 7 aluminum colors yellowbg

Don't Want the Apple Watch Ultra or Series 8? Amazon Has Record Low Prices on Series 7 Models This Week

Friday September 23, 2022 6:56 am PDT by
The Apple Watch Series 8 and Apple Watch Ultra are now available to purchase, but if you aren't interested in these updates you can save a lot of money on Series 7 models right now on Amazon. Note: MacRumors is an affiliate partner with Amazon. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. The best deals are on cellular...
iOS 16

Apple Releases iOS 16.0.2 With Bug Fixes for iPhone 14 Pro Camera Vibration, Copy/Paste Issue and More

Thursday September 22, 2022 1:04 pm PDT by
Apple today released iOS 16.0.2, addressing a number of bugs that iPhone 14 owners have been experiencing since the new devices launched. iOS 16.0.2 comes two weeks after the launch of iOS 16, and it follows iOS 16.0.1, an update made available to iPhone 14 owners on launch day. The update is available for all iPhones that are capable of running iOS 16. The iOS 16.0.2 update can be...
14 vs 16 inch mbp m2 pro and max feature 1

New 14-Inch and 16-Inch MacBook Pros Reportedly Launching Later This Year

Friday September 23, 2022 7:08 am PDT by
Apple plans to release new MacBook Pro models in the fourth quarter of 2022, according to supply chain publication DigiTimes. The report does not mention specific models, but it very likely refers to the next-generation 14-inch and 16-inch MacBook Pros given that the 13-inch model was already updated earlier this year. There has been uncertainty surrounding the timing of new 14-inch and...
Tim Cook Apple Event

Gurman: New iPads and Macs May Be Announced Through Press Releases, No October Event

Sunday September 25, 2022 6:50 am PDT by
Apple may decide to release its remaining products for 2022, which include updated iPad Pro, Mac mini, and 14-inch and 16-inch MacBook Pro models, through press releases on its website rather than a digital event, according to Bloomberg's Mark Gurman. In his latest Power On newsletter, Gurman said that Apple is currently "likely to release its remaining 2022 products via press releases,...
Dynamic Island For Android Users Feature

Android App Copying iPhone 14 Pro's Dynamic Island Released on Play Store

Thursday September 22, 2022 7:57 am PDT by
A copycat version of the iPhone 14 Pro's Dynamic Island has arrived on Android's Google Play Store in the form of an app called "dynamicSpot." The app, still in beta, offers customers several different experiences at the top of their smartphones. In its current form, dynamicSpot offers playback control for songs, timers, battery status, and more features coming soon, according to the app's...
AirPods Pro Second Generation 2 Pairing Feature 1

AirPods Pro 2 Engravings Appear in iOS During Pairing and Connecting

Friday September 23, 2022 9:40 am PDT by
Customers who personalize their second-generation AirPods Pro charging case with an engraving will now have that engraving reflected directly on iOS as they pair and connect their AirPods Pro. Apple allows customers to personalize their AirPods Pro charging case with a special engraving that can include select emojis and Memojis. Unlike before, starting with the second-generation AirPods...
Apple Watch 6 New Features Feature 2

Six New Apple Watch Features Coming Later This Year

Friday September 23, 2022 8:12 am PDT by
With new Apple Watch Ultra and Series 8 models now in the hands of customers, Apple has brought a host of smart new features to many people's wrists. But there's more to come. Apple has a handful of additional features in store for Apple Watch Series 8 and Apple Watch Ultra owners before the year's end, and some of them are watchOS 9 functions, which means they will even work on older Apple ...
new airpods pro ear tips

Apple Explains Why Second-Generation AirPods Pro Ear Tips Are Incompatible With Original AirPods Pro

Thursday September 22, 2022 3:12 pm PDT by
Apple today explained why the new silicone ear tips for the second-generation AirPods Pro are not officially compatible with the original AirPods Pro. In an updated support document, Apple said the original AirPods Pro ear tips have "noticeably denser mesh" than the second-generation ear tips. Apple did not provide any additional details, but the mesh density could result in acoustical...