It's also not faster, if that is what you read in my comment: Chrome/ium and Firefox keep improving. And depending on what month and what benchmark, one will outperform the other. Slightly.
It could be anecdotal? For any of both browsers, though. E.g. some plugins/addons will slow down the browser significant. Or usage specific? Maybe one handles having 2000 tabs open better than the other? Or page-specific?
