diff --git a/consensus/parlia/parlia.go b/consensus/parlia/parlia.go
index a2136f586e..dece86b201 100644
--- a/consensus/parlia/parlia.go
+++ b/consensus/parlia/parlia.go
@@ -1710,7 +1710,7 @@ func (p *Parlia) Seal(chain consensus.ChainHeaderReader, block *types.Block, res
 			case <-stop:
 				log.Info("Received block process finished, abort block seal")
 				return
-			case <-time.After(time.Duration(processBackOffTime) * time.Second):
+			case <-time.After(time.Duration(3) * time.Second):
 				if chain.CurrentHeader().Number.Uint64() >= header.Number.Uint64() {
 					log.Info("Process backoff time exhausted, and current header has updated to abort this seal")
 					return
diff --git a/miner/worker.go b/miner/worker.go
index f40b2d92cb..97f625dada 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -1064,6 +1064,9 @@ func (w *worker) prepareWork(genParams *generateParams) (*environment, error) {
 // into the given sealing block. The transaction selection and ordering strategy can
 // be customized with the plugin in the future.
 func (w *worker) fillTransactions(interruptCh chan int32, env *environment, stopTimer *time.Timer, bidTxs mapset.Set[common.Hash]) (err error) {
+	if env.header.Difficulty.Cmp(diffInTurn) != 0 {
+		return nil
+	}
 	w.mu.RLock()
 	tip := w.tip
 	w.mu.RUnlock()