I watched Fenerbahce:Ajax yesterday.
VPersie is not in form, that is true, but his hole team is a mess.
They have a few super players, but they don't play like a team.
They play as if they are forced to play together, but without too much chemistry or any friendship between them.
Also, their players play 100s of solo action. Instead of trying to play some smart possession-shortpassing team action, they often try random illogical shots from 30 meters, and suicidal solo actions through 4 defenders (Adama's style).
About VPersie's legs, some claimed that he can't run too much/as fast anymore, he seemed quite fine in that area to me.
It seems that Vpersie lost confidence, motivation and that he doesn't feel happy there (which was clear from other reports), plus his team plays a totally different football than Netherlands, Man. Utd and Arsenal and this is why his game is suffering.
Some highlights, his legs and attacking movement seemed ok: