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Currently Being Moderated

Brush Lag after using CS5 for a few hours?!

Apr 30, 2012 9:38 AM

Mac Pro

2x2.8 Quad Core Xeon

10 g 800mhz mem

ATI 5770


PS CS5 12.04


Working on image @ 3010x5562 240ppi 22M


After working for a few hours, using various brush, including Mixer Brushes, I started to get brush lag and this just got worse as I went on!


I tried clearing cache, saving and rebooting, but still have problem!


I have also tried opening another image, but had the same problem, so I can only assume this is not a image problem as such, but a resources fault with Photoshop?!


Can anyone please advice?


Did Adobe address the Mixer Brush lag problem with CS6?


Many thanks for your time!


  • Currently Being Moderated
    Apr 30, 2012 11:30 AM   in reply to finnandme

    Check your History States and Cache Levels in Preferences/Performance.


    What values do you have?

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  • Currently Being Moderated
    Apr 30, 2012 11:53 AM   in reply to finnandme

    Have you installed all the updates for Photoshop?


    The only slowdown that I know of occurs if you change screen modes (with the 'f" key) a lot.

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  • Trevor Dennis
    5,972 posts
    May 24, 2010
    Currently Being Moderated
    May 3, 2012 3:48 AM   in reply to finnandme

    If purging the cache fixes the problem, then you at least have an idea of what to look at.

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  • Currently Being Moderated
    May 3, 2012 8:10 AM   in reply to finnandme

    Using the "f" key to change the display mode a lot does cause a slowdown due to a combination of windowing/OS issues.  Try the CS6 public beta (grab it quick) and see how that works.

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  • Currently Being Moderated
    May 22, 2012 11:23 PM   in reply to finnandme

    I get the brush lag (Mac OS X, CS5) in PS 5.1 but instantly when I start using it.

    Until I figured out a simple "fix" that seems to work. I don't know if it will help you but here's what I do:

    Save the image you are working in.

    Resize the image to 600px.

    Then Edit/Undo the resize.

    For some reason, this has worked for me.

    After the resize undo, I can continue working on the image with no lag.

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