Anyone else seeing huge Safari CPU spikes on macOS 27/27.0.1?
On my new Mac mini, any webpage with video can push total CPU usage in Activity Monitor to 40–70% and even kick the fan on. Chrome/Brave playing the same type of video stays around 3–7%.
No extensions installed. Feels like a Safari/WebKit video decode or GPU/compositing regression. I'm done with Safari until they fix will just use Brave.