Jimmy Butler has the highest PER in the 2022 NBA Playoffs of the players that played through the second round, followed by Luka Doncic and Giannis Antetokounmpo. Doncic has a career PER of 29.4, which is second amongst active players behind LeBron James. 

2022 NBA Playoffs PER
1. Jimmy Butler: 31.8
2. Luka Doncic: 31.0
3. Giannis Antetokounmpo: 27.3
4. Ja Morant: 24.8
5. Stephen Curry: 24.2
6. Chris Paul: 23.2
7. Brandon Clarke: 22.9
8. Jalen Brunson: 21.6
9. Gary Payton II: 21.4
10. Jayson Tatum: 19.8
11. Joel Embiid: 19.3
12. Robert Williams: 19.3
13. Bam Adebayo: 19.1
14. Jordan Poole: 19.1
15. Jaylen Brown: 18.8
16. Devin Booker: 18.5
17. Al Horford: 17.8
18. Tyrese Maxey: 17.2
19. Tobias Harris: 16.5
20. Desmond Bane: 16.4
21. Jaren Jackson Jr: 16.3
22. Maxi Kleber: 16.2
23. Andrew Wiggins: 16.0
24. Klay Thompson: 15.8
25. Spencer Dinwiddie: 15.3