3 ms·Smooth for me on Win7/FF44b+IE11. Chrome 48 doesn't appear to like it much though.by badlucklottery 11y agoSmooth for me on Win7/FF44b+IE11. Chrome 48 doesn't appear to like it much though.FussyZeus 11y agoSafari up-to-date on a MacBook Pro, so much chug. Must be a webkit thing.Razengan 11y agoSafari with a ton of other tabs on a 12" Retina MacBook, on battery, and this website works fine.pcwalton 11y agoWorks fine for me on Firefox too. It likely is a WebKit issue.