[aardvarklegend]

I believe that’s because it’s frames per second, not an abstract percentile.

[dhritzkiv]

While I was able to intuit the the Y axis was FPS, it's not wholly obvious. Labeling the graph (or at the very least, just that axis) would help.

[Kuraj]

Oh, wow.

I'm an idiot

[donaltroddyn]

Not at all - it's a poor graph with an unlabelled axis.