why is the refresh rate slower in lab mode?

[mantra]

hi

why is the refresh rate slower in lab mode?

for example i load an image , rgb , ad an adjustament layer -> curve and i start to play with curve -> the refresh is instantaneous (i mean the image become more dark or lighter instantaneous )

but if i load an image -> conver in lab mode , the refresh rate is slower


i tried cc and cs6 too, same behavior under w8.1 64 and w7 64bit

5d mark 2 image , jpg , zoom actual size
thanks

[skoobey]

Re: why is the refresh rate slower in lab mode?

You need more ram.

[Shoku]

Re: why is the refresh rate slower in lab mode?

What skoobey said. I'm using a MAC with 6GB of RAM and both color spaces refresh at the same speed. CC and CS6.