Also, even when the display is visible we should not assume to have vsync. Sometimes it will be a no-op if disabled in the driver settings, or if the screen is in sleep mode. And you'll get 100% CPU again.
Also, even when the display is visible we should not assume to have vsync. Sometimes it will be a no-op if disabled in the driver settings, or if the screen is in sleep mode. And you'll get 100% CPU again.