Photoshop: CS6 Slow compared to CS5.1 with large files

  • 49
  • Problem
  • Updated 5 years ago
  • Solved
PS CS6 has a lot of enhancements and great features. it launches very fast, and the control is very responsive and smooth.

although i am experiencing some speed issues with very large files. compared to CS5.1, where i don't have any of these issues.

the files are PSBs, 9000x8000px, 80+layers, RGB, 8bit

i have the same performance settings for both, cs6 and cs5
i am working on MAC PRO, 16GB ram, SSD scratch, 2TB raid, Radeon HD 5770, Snow Leopard.

the main issues i have are:

- no refresh when i move the curve on adjustment layer. the refresh comes after i let go.
- jagged pan
- extremely slow moving of layers and layer groups, even if they are with smaller dimensions (800x400pix)

again, working with files with less layers or smaller dimensions is very fast.

thanks for your help and support!
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laden m

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Posted 8 years ago

  • 49
Photo of Chris Cox

Chris Cox

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Official Response
(summary for those just joining the discussion)

The known layer performance problems in CS6

1) Layer thumbnails are slow to draw, especially when moving many layers at once.
WORKAROUND: disable layer thumbnails in the layers palette options.
****FIXED in Photoshop 13.0.1

2) "Snap to Layers" is slow on documents with many layers.
WORKAROUND: turn off snap or just the snap to layer bounds option in View -> Snap To -> Layers

3) Nudging layers can be slow on documents with many layers
WORKAROUND: disable layer thumbnails in the layers palette options, or set the thumbnails to "Entire Document" instead of "Layer Bounds" (which was the default in previous versions).

If you are experiencing a problem, first download and install the updates, next try using these workarounds to eliminate the known problems. Then, if a slowdown remains, we'll need a lot more details.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Official Response
Fixed in CS6 13.0.1 or later.