I just had to throw my two cents in regarding all this Chrome scroll lag noise. I realized that the issue is directly proportional to window size. On my MBPR, when I run Chrome in non-full-screen view but stretched to 99% of the screen (minus the space at the bottom for the dock), scrolling is bad enough to make me want to go jump out a window. Incredibly so for media-heavy sites like The Verge, etc. Light pages fare a little better. However, if the window is resized smaller (I currently have it at a little over 50% of the overall screen), performance is a LOT better. Very very smooth! Still not as buttery as Safari, but it's a huge improvement. Full screen it honestly seems broken, but as a smaller window, Chrome is super nice to use. Anyone else come to this conclusion? Is there any chance that full-screen performance would improve in a future update?