Mojave slowing everything down to a crawl?

Discussion in 'macOS Mojave (10.14)' started by 711paul, Apr 25, 2019.

  1. 711paul macrumors newbie

    Nov 20, 2015
    Upgraded to 10.14.4 and suffering horrendous 'beachballs', hanging on most applications and at start up (eg Photos, Contacts and Office for Mac) - am I the only one? Is it possible to 'retreat' to previous Sierra OS to test speed response and figure out why this is happening. My 27" iMac is 4 years old with 1.5TB available from 2TB 'fusion' hard disc.

    This is almost worse than Windows!!

  2. cruisin macrumors 6502a


    Apr 1, 2014
    It might be you. I haven't heard any widespread issues and aside from the 32-bit app warnings it is fine for me.

    There is no way to retreat, you need to erase everything and reinstall the macOS version you want. Make a Time Machine backup, and it will bring your stuff back during the restore. Or if you have a spare drive you can install onto it for testing and not touch your files.
  3. Lee_Bo macrumors regular


    Mar 26, 2017
    Greenville, SC
    Do you ave your drive encrypted? I did that when I upgraded my MBP but yes, lots of beach balls. Unencrypted drive and all was better.

    Also, on a MBP, encrypting the drive will not allow the backlit keyboard to come on until AFTER you are logged in. Kinda defeats that purpose.
  4. Honza1 macrumors 6502

    Nov 30, 2013
    Something went wrong in installation, software (apps), or hardware, 10.14.4 is typically as fast as prior OSX versions, even on old hardware (like ~2012 or 2013 Mini with 6Gb RAM). My first suggestions would be (make sure you have backup first!):
    1. Disk utility, check drive. May be something is not right with disk structure. Disk errors will cause this easily. And they can develop any time.
    2. Reinstall Mojave. Sometimes something does not install right. Reinstall in place (without wiping the drive) can help - and should be non destructive.
    3. Backup drive to external drive (CCC is great for this) and wipe the drive, install Mojave system, and test. If all works fine, try migrating your data/applications back using Migration Assistant. If is slow again after migration, you have something bad/incompatible in your apps/data. In which case you can wipe again, install Mojave, and then migrate only data you need manually and reinstall applications you need - making sure your apps are Mojave compatible.

    Downgrading is bit painful so try these steps first, may be it will help. Good luck.

    PS: Encryption on its own does not slow down system for users - at least observably. I encrypt all of my drives and while they clock bit slower when encrypted, it is not observable in real life. ~10% throughput reduction of read/write speed I have tested consistently is not observable for users most of the time and not responsible for beach balling.
  5. NoBoMac macrumors 68020

    Jul 1, 2014
  6. jhirsch1942 macrumors newbie

    May 12, 2019
    OH YES, it's true imho. Also my Magic Mouse 2 is also erratic. Everything was fine in High Sierra, then the spinning beachball slug appears right after upgrading to Mohave. When I type in the search bar, many time my text falls off and I have to retype everything. Monitor switches to desktop for no reason. I'm thinking of going back to Sierra too.

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5 April 25, 2019