In real life the shooting % of 3FG is lower than the shooting % of inside shots as well, so that's normal. That's why a long shot counts as 3 instead of 2 points
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Koby Bryant's Post Season Numbers:
39.2 Minutes per game, 0.515% FG, .353% 3FG 34.3 PPG.
LA Lakers Post season numbers:
0.491 FG% 0.430 3P%
Nash is .504 FG% and .470 from the 3point line.
The Suns are .461 FG% and .338 3FG%
Garnett is probably the only exceptions with his 100% 3FG shooting in post season hehe, his lucky buzzer shot.