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Level 1

15 points

MacBook Pro Retina suddenly become slow

I was running World of Warcraft on my MBPr (my second one since the first one went into meltdown after less than a day). The fps was around 35-40ms, I had most settings on good and a few on low or disabled (sunshafts). I could tab out of Warcraft and check my email and browse Safari no problem. This morning everything was great.

This evening I logged in, fps was 5ms. It was super laggy. Safari was unusable, I didn't even bother trying Mail. No settings have been changed since this morning. I set all the Warcraft settings to low, got the fps up to 11ms. Then I quit and restarted the machine. The fps is now around 20ms with everything set on low. Safari is still unusable whilst Warcraft is running. I have a better experience on my three year old MBP or my friend's MBA.

Just to advise the energy saver preferences are set to always on for graphics and the computer is plugged into the power.

Has the graphics card and/or processor just turned off or something?

So annoyed.

MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)

Posted on Sep 29, 2012 12:16 PM

Best reply

Jon P D

Level 4

1,522 points

Posted on Sep 29, 2012 1:27 PM

Quite a few people have been having this issue and have said that an SMC reset solved their problem

View in context

17 replies

Oct 1, 2016 3:52 AM in response to grudgnor

Thanks !
deleted both files & reset NVRAM....
now should works fines with 3 youtube pages on...

before, it turn lag whenever i plug in my power port... so ANNOYING ....

and decided to find answer from google...

Oct 27, 2016 8:13 PM in response to buttmonki

Hello all, I am observing a huge performance drop since my battery died.

I have a late 2013 macbook pro 13' retina display. The battery could last 1h30 - 2h. Since last week it started to behave strangely. The computer would shut down after 20 minutes of use on battery, as if the battery were having a short circuit. Then 2 days ago it officially died : i cannot use my laptop other than plugging it on the magsafe cord. No battery life anymore.

At the exact SAME TIME, my computer performances dropped dramatically, including of course video game performances (I play Heroes of the Storm) which is now totally unplayable. The computer is not getting hot anymore, the fan is not working anymore, as if the CPU was on a minimal use mode or so..

I tried the manipulations explained on this post but there don't seem to have any improvements. Any clues ? Would the problem be fixed if i changed the battery ?

Thank you,

MacBook Pro Retina suddenly become slow