The brush tool in Adobe Camera Raw is very slow and sluggish, almost impossible to use. I am on a very fast Mac Book Pro with 16gb of RAM. I have a newly installed Yosemite and PS.
I have no idea how to fix this, would appreciate any help thank you!!!
Tried the Option Command Shift reset but no joy.
Running MBP Retina 15" Yosemite 10.10.3
2.8 GHZ Intel Core i7
NVDIA GeForce GT 750M 2048 MB
ACR Version No. 126.96.36.1997
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