[request] ui performance when rendering hires image

[carbon]

Hi,
My work is exclusively in high resolutions and today when photographers are jumping around with 60+ megapixels digital backs so must I.

The problem currently is, when I set high resolution, like 5000x7000px, the overall performance of ui is very poor.. everything slows down and adding nodes, modifying properties or so is beyond being usable. This problem is present only when there is an image visible in render viewport, no matter if is being rendered or not.

Seems like full resolution image is loaded in viewport, so it might help to resample it to screen resolution and crop to viewport window before displaying on screen.. But that's just a thought..

Thanks
c.