diff --git a/runtime/ajuna/src/lib.rs b/runtime/ajuna/src/lib.rs
index 362c993..2db6056 100644
--- a/runtime/ajuna/src/lib.rs
+++ b/runtime/ajuna/src/lib.rs
@@ -241,9 +241,9 @@ const AVERAGE_ON_INITIALIZE_RATIO: Perbill = Perbill::from_percent(5);
 /// `Operational` extrinsics.
 const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(75);
 
-/// We allow for 2 of a second of compute with a 6 second average block time.
+/// We allow for 500ms of a second of compute with a 12-second average block time.
 const MAXIMUM_BLOCK_WEIGHT: Weight = Weight::from_parts(
-	WEIGHT_REF_TIME_PER_SECOND.saturating_mul(2),
+	WEIGHT_REF_TIME_PER_SECOND.saturating_div(2),
 	cumulus_primitives_core::relay_chain::MAX_POV_SIZE as u64,
 );
 
@@ -627,7 +627,7 @@ impl pallet_aura::Config for Runtime {
 	type AuthorityId = AuraId;
 	type DisabledValidators = ();
 	type MaxAuthorities = MaxAuthorities;
-	type AllowMultipleBlocksPerSlot = ConstBool<true>;
+	type AllowMultipleBlocksPerSlot = ConstBool<false>;
 	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
@@ -814,7 +814,8 @@ construct_runtime!(
 		XcmpQueue: cumulus_pallet_xcmp_queue = 30,
 		PolkadotXcm: pallet_xcm = 31,
 		CumulusXcm: cumulus_pallet_xcm = 32,
-		MessageQueue: pallet_message_queue = 33,
+		// DmpQueue: cumulus_pallet_dmp_queue = 33,
+		MessageQueue: pallet_message_queue = 34,
 
 		// Governance
 		Sudo: pallet_sudo = 40,