Q: Why do some players have higher PFR than VPIP?
A: First of all, this only happens in games where you face a lot of all in situation (e.g. Shortstack games, tournaments). If you dont face all-ins, PFR will never be higher than VPIP.
Here is an example of how PFR changed:
Situation 1: (without all-ins)
You played 10 hands, called once and raised 2 times.
That made your VPIP 30 (3 out of 10 times), PFR 20 (2 out of 10 times)
Exactly same as before, VPIP 30 (3 out of 10), PFR 20 (2 out of 10)
You play 10 hands, call once, raise 2 times (same as before), but you also face 4 all-ins)
VPIP 30 (3 out of 10 times),
PFR 20 (2 out of 10 times)
VPIP 30 (3 out of 10 timeS)
PFR 33 (2 out of 6 times, you couldnt raise when facing 4 all-ins)
Q: Why is this good?
A: The new % is the more accurate representation of player's range in games with a lot of all-ins. Think of it this way: are you more likely to raise all-in, or call an all-in? For a lot of players, it holds true that they raise a much bigger % of their hands than what they call with and that's why you will see their PFR being higher than VPIP.