Where can i find Performance and uncheck Use graphics processor on mac

[lkphotos]

I am having problems with Develop mode.  I have seen on other posts from people having same problems that it seems to be an easy fix PREFRENCES - Performance and uncheck Use graphics processor.

When i open up preferences on my lightroom (mac computer, lightroom 4.4) there is no performance tab.

Anyone know where to find it?

Thanks

[John Waller · Accepted solution]

The Performance tab is in Lightroom CC/Lightroom 6.  It is not available in LR5 or earlier.

[lkphotos]

Do you know how to fix this problem in my version of Lightroom please?

[John Waller]

What exactly is your problem with the Develop module?

Which operating system?

[lkphotos]

When i import the photo to library the photo is fine.  As soon i click develop this happens.  A little like a negative effect on the bottom right.   Its happening in all photos not just dark sunset ones

[lkphotos]

Sorry a Mac

[ManiacJoe]

Yes, there is a little bit of rainbow banding down in the lower-right corner.

The first thing I would check is your monitor profile. Lightroom is very sensitive to corrupted monitor profiles; you might need to recreate it by calibrating your monitor again.

[lkphotos]

Thanks, re calibrated my monitor but still no change in develop mode.

When i export the files they are fine but obviously hard to edit