diff --git a/chanlun/pipeline/builders/indicators.py b/chanlun/pipeline/builders/indicators.py
index 65dc2d1..d0209f8 100644
--- a/chanlun/pipeline/builders/indicators.py
+++ b/chanlun/pipeline/builders/indicators.py
@@ -60,8 +60,8 @@ class IndicatorsBuilderMixin:
 		30 多列的开销比全部 TA 计算本身还大（2001 行实测 TA 合计 2.5ms，
 		逐列赋值 3.6ms）。增量路径每根都要走一遍，这笔开销是白付的。
 		"""
-		fast = 26
-		slow = 52
+		fast = 12
+		slow = 26
 		period = 9
 		macd = ta.MACD(df, fastperiod=fast, slowperiod=slow, signalperiod=period)
 		bb365 = ta.BBANDS(df, timeperiod=365, nbdevup=3.0, nbdevdn=3.0, matype=0)