In their one test app they observed FPS values of 315 on Linux, and 303.4 on Windows. This seems small enough that it's a stretch to call it "trouble" on Windows--probably wouldn't even notice it.
Given that screens physically refresh at 60Hz these days, you definitely wouldn't notice it. High FPS numbers are useful as a guide to efficiency, not subjective experience.
> High FPS numbers are useful as a guide to efficiency, not subjective experience.
Not really. FPS readings >= monitor refresh rate give skewed results that may not reflect the actual performance. Despite this, it's still used widely in performance benchmarks.