diff --git a/examples/lock-app/silabs/openthread.gni b/examples/lock-app/silabs/openthread.gni
index cde56f8029f6da..729440aa5d9ffa 100644
--- a/examples/lock-app/silabs/openthread.gni
+++ b/examples/lock-app/silabs/openthread.gni
@@ -27,11 +27,12 @@ openthread_external_platform =
 
 # ICD Default configurations
 chip_enable_icd_server = true
+enable_synchronized_sed = true
 chip_subscription_timeout_resumption = false
 sl_use_subscription_synching = true
 
 # Openthread Configuration flags
-sl_ot_idle_interval_ms = 5000  # 5s Idle Intervals
+sl_ot_idle_interval_ms = 500  # 5s Idle Intervals
 sl_ot_active_interval_ms = 500  # 500ms Active Intervals
 
 # ICD Matter Configuration flags