playing 30fps mode but recording in 60fps and uploading it to show in 60fps, doesn't mean the guy is playing in 60fps.thats not how it works, just cuz you render a video at 60fps doesn't mean the frame data will be read at 60fps. And they played it...you can feel the difference between 30/60fps
the same way, if i play in 60fps mode but record it in 30fps, upload it as 30fps that the game i am playing is 30fps.