Judging by the above video, I have a feeling it has something to do with a different fps - frames per second.
The guy above has a high end system and is running the plane very smoothly but doesnt make a spectacularly smooth touchdown vertical speed of under -50ft/min, yet it still seems smooth.
I just landed at LAX with maybe 30frames at a similar descent rate and the aircraft completely bounced, shuddered and lifted a main back into the air despite only a 4kt wind component.