diff --git a/pallets/subtensor/Cargo.toml b/pallets/subtensor/Cargo.toml
index 3023d1e0dc..100ce0dde9 100644
--- a/pallets/subtensor/Cargo.toml
+++ b/pallets/subtensor/Cargo.toml
@@ -116,3 +116,4 @@ try-runtime = [
 	"pallet-collective/try-runtime"
 ]
 pow-faucet = []
+fast-blocks = []
diff --git a/pallets/subtensor/src/subnets/registration.rs b/pallets/subtensor/src/subnets/registration.rs
index 9310b7a3ff..516fd8cf37 100644
--- a/pallets/subtensor/src/subnets/registration.rs
+++ b/pallets/subtensor/src/subnets/registration.rs
@@ -381,7 +381,12 @@ impl<T: Config> Pallet<T> {
         );
 
         // --- 3. Ensure the supplied work passes the difficulty.
-        let difficulty: U256 = U256::from(1_000_000); // Base faucet difficulty.
+        let difficulty: U256 = if !cfg!(feature = "fast-blocks") {
+            U256::from(1_000_000) // Base faucet difficulty.
+        } else {
+            U256::from(100) // Lowered for fast blocks
+        };
+
         let work_hash: H256 = Self::vec_to_hash(work.clone());
         ensure!(
             Self::hash_meets_difficulty(&work_hash, difficulty),
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index c82a5aa498..1c37e0bb49 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -122,7 +122,9 @@ substrate-wasm-builder = { workspace = true, optional = true }
 [features]
 default = ["std"]
 pow-faucet = ["pallet-subtensor/pow-faucet"]
-fast-blocks = []
+fast-blocks = [
+	"pallet-subtensor/fast-blocks"
+]
 std = [
 	"frame-try-runtime?/std",
 	"frame-system-benchmarking?/std",