In the 2009 playoffs, LeBron averaged 47.5 points per 100 possessions. This remains the highest playoff scoring rate for anyone who played at least 3 series
In 2009, a 24 year old LeBron went absolutely berserk in the playoffs, averaging a yet to be topped 47.5 points per 100 possessions in the 14 playoff games he played.
This is still the highest single run playoff scoring rate in nba history, with is incredibly remarkable as in recent years offensive rating has dramatically increased league wide, which has necessitated the introduction of stats like ‘Inflation adjusted points per 100 possessions’.
To me this was the most individually impactful playoff run of all time, as he was also very efficient, and was one of the best defensive players in the league at the same time
Source, https://www.basketball-reference.com/players/j/jamesle01.html