That’s how I treated it too. I took it at face value.

I have modern hardware so I don’t care too much about browser performance. All browsers perform well on my hardware. Obviously some are more lightweight and optimised, but I have no doubts about my ability to comfortably browse the web on my hardware, so all the performance questions I tended to rank in the middle (ie not most or least important) as I don’t tend to notice browser performance.