diff --git a/consensus/blake3pow/blake3pow.go b/consensus/blake3pow/blake3pow.go
index 264950f7e3..7f91e9d9ea 100644
--- a/consensus/blake3pow/blake3pow.go
+++ b/consensus/blake3pow/blake3pow.go
@@ -41,7 +41,7 @@ const (
 type Config struct {
 	PowMode Mode
 
-	DurationLimit []*big.Int
+	DurationLimit *big.Int
 
 	// When set, notifications sent by the remote sealer will
 	// be block header JSON objects instead of work package arrays.
diff --git a/consensus/blake3pow/consensus.go b/consensus/blake3pow/consensus.go
index a04e0ae4ea..d05180f839 100644
--- a/consensus/blake3pow/consensus.go
+++ b/consensus/blake3pow/consensus.go
@@ -355,7 +355,7 @@ func (blake3pow *Blake3pow) CalcDifficulty(chain consensus.ChainHeaderReader, pa
 
 	// (2 if len(parent_uncles) else 1) - (block_timestamp - parent_timestamp) // duration_limit
 	x.Sub(bigTime, bigParentTime)
-	x.Div(x, blake3pow.config.DurationLimit[nodeCtx])
+	x.Div(x, blake3pow.config.DurationLimit)
 	if parent.UncleHash() == types.EmptyUncleHash {
 		x.Sub(big1, x)
 	} else {
diff --git a/params/protocol_params.go b/params/protocol_params.go
index 898c984e9f..f1b5065cc8 100644
--- a/params/protocol_params.go
+++ b/params/protocol_params.go
@@ -152,13 +152,13 @@ const (
 )
 
 var (
-	DifficultyBoundDivisor = big.NewInt(2048)                                              // The bound divisor of the difficulty, used in the update calculations.
-	ZoneMinDifficulty      = big.NewInt(131072)                                            // The minimum difficulty in a zone. Prime & regions should be multiples of this value
-	MinimumDifficulty      = ZoneMinDifficulty                                             // The minimum that the difficulty may ever be.
-	GenesisDifficulty      = ZoneMinDifficulty                                             // Difficulty of the Genesis block.
-	DurationLimit          = []*big.Int{big.NewInt(1000), big.NewInt(100), big.NewInt(10)} // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
-	GardenDurationLimit    = []*big.Int{big.NewInt(150), big.NewInt(30), big.NewInt(3)}    // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
-	OrchardDurationLimit   = []*big.Int{big.NewInt(150), big.NewInt(30), big.NewInt(3)}    // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
-	LocalDurationLimit     = []*big.Int{big.NewInt(24), big.NewInt(7), big.NewInt(2)}      // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
+	DifficultyBoundDivisor = big.NewInt(2048)   // The bound divisor of the difficulty, used in the update calculations.
+	ZoneMinDifficulty      = big.NewInt(131072) // The minimum difficulty in a zone. Prime & regions should be multiples of this value
+	MinimumDifficulty      = ZoneMinDifficulty  // The minimum that the difficulty may ever be.
+	GenesisDifficulty      = ZoneMinDifficulty  // Difficulty of the Genesis block.
+	DurationLimit          = big.NewInt(10)     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
+	GardenDurationLimit    = big.NewInt(3)      // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
+	OrchardDurationLimit   = big.NewInt(3)      // 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)
 )