Considering the now new feature (fit to screen) and the retina feature. A lot of my images that are imported are higher resolution than 96 dpi. I know that xara outputs 96 dpi for the web but what about file size and memory used by xara to calculate the images? Do you think that has an effect on slowing down the processing process (rendering)?

Would you suggest importing all images at 96 dpi? If so, I have found that quality of resolution gets even more degraded once rendered and displayed on browsers.