diff --git a/spartan/environments/next-net.env b/spartan/environments/next-net.env
index 5d46d171f9d6..c4b5167788bc 100644
--- a/spartan/environments/next-net.env
+++ b/spartan/environments/next-net.env
@@ -29,16 +29,17 @@ L1_TX_FAILED_STORE=gs://aztec-develop/next-net/failed-l1-txs
 TEST_ACCOUNTS=true
 SPONSORED_FPC=true
 
+SEQ_ENABLE_PROPOSER_PIPELINING=true
 SEQ_MIN_TX_PER_BLOCK=1
-
-SEQ_MAX_TX_PER_CHECKPOINT=7
+SEQ_MAX_TX_PER_CHECKPOINT=12
 
 # Build checkpoint even if block is empty.
 SEQ_BUILD_CHECKPOINT_IF_EMPTY=true
-SEQ_BLOCK_DURATION_MS=6000
+SEQ_BLOCK_DURATION_MS=5500
 
 AZTEC_LAG_IN_EPOCHS_FOR_VALIDATOR_SET=2
 AZTEC_LAG_IN_EPOCHS_FOR_RANDAO=2
+AZTEC_INBOX_LAG=2
 
 VALIDATOR_REPLICAS=4
 VALIDATORS_PER_NODE=12