diff --git a/subsys/bluetooth/controller/ll/ctrl.c b/subsys/bluetooth/controller/ll/ctrl.c
index e17b2331bb0..7b4ebd4571e 100644
--- a/subsys/bluetooth/controller/ll/ctrl.c
+++ b/subsys/bluetooth/controller/ll/ctrl.c
@@ -47,8 +47,8 @@
 #define RADIO_CONN_EVENTS(x, y)		((uint16_t)((x) / (y)))
 
 #define RADIO_TICKER_JITTER_US			16
-#define RADIO_TICKER_START_PART_US		200
-#define RADIO_TICKER_XTAL_OFFSET_US		1500
+#define RADIO_TICKER_START_PART_US		300
+#define RADIO_TICKER_XTAL_OFFSET_US		1200
 #define RADIO_TICKER_PREEMPT_PART_US		0
 #define RADIO_TICKER_PREEMPT_PART_MIN_US	0
 #define RADIO_TICKER_PREEMPT_PART_MAX_US	RADIO_TICKER_XTAL_OFFSET_US