How do you know this? Xbox One titles as a whole relatively deep under 30 fps using unusual or adaptive resolutions... that's not something I would call solid in terms of performance.
The only inconvenience of the pc version is the damn app format in which Windows 10 treats its games. It was horrible for Fable Legends, and this is why I was glad to see a Steam version of Tomb Raider, Xbox achievements be damned.
And don't get me wrong, I'm not hating on them giving both versions for the price of one (that is if you pre-order). It's a good thing.
Well the videos did not show significant performance issues so far.