diff --git a/params/protocol_params.go b/params/protocol_params.go
index 365228f1f3..201088468c 100644
--- a/params/protocol_params.go
+++ b/params/protocol_params.go
@@ -161,7 +161,7 @@ var (
 	LighthouseDurationLimit           = big.NewInt(7)     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
 	LocalDurationLimit                = big.NewInt(2)     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
 	TimeFactor                        = big.NewInt(7)
-	PrimeEntropyTarget                = big.NewInt(441) // This is TimeFactor*TimeFactor*common.NumZonesInRegion*common.NumRegionsInPrime
+	PrimeEntropyTarget                = big.NewInt(100) // This is TimeFactor*TimeFactor*common.NumZonesInRegion*common.NumRegionsInPrime
 	RegionEntropyTarget               = big.NewInt(21)  // This is TimeFactor*common.NumZonesInRegion
 	DifficultyAdjustmentPeriod        = big.NewInt(360) // This is the number of blocks over which the average has to be taken
 	DifficultyAdjustmentFactor int64  = 40              // This is the factor that divides the log of the change in the difficulty
diff --git a/quai/handler.go b/quai/handler.go
index 02824bd743..0b39e2d619 100644
--- a/quai/handler.go
+++ b/quai/handler.go
@@ -15,7 +15,7 @@ const (
 	// c_missingBlockChanSize is the size of channel listening to the MissingBlockEvent
 	c_missingBlockChanSize = 60
 	// c_checkNextPrimeBlockInterval is the interval for checking the next Block in Prime
-	c_checkNextPrimeBlockInterval = 60 * time.Second
+	c_checkNextPrimeBlockInterval = 10 * time.Second
 	// c_txsChanSize is the size of channel listening to the new txs event
 	c_newTxsChanSize = 100
 )