diff --git a/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/ContextImpl.java b/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/ContextImpl.java
index 85b8080bd865f..7271c870a1347 100644
--- a/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/ContextImpl.java
+++ b/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/ContextImpl.java
@@ -25,6 +25,9 @@
 import lombok.Getter;
 import lombok.Setter;
 import org.apache.commons.lang3.StringUtils;
+import org.apache.pulsar.client.api.CompressionType;
+import org.apache.pulsar.client.api.HashingScheme;
+import org.apache.pulsar.client.api.MessageRoutingMode;
 import org.apache.pulsar.client.api.Producer;
 import org.apache.pulsar.client.api.PulsarClient;
 import org.apache.pulsar.client.api.PulsarClientException;
@@ -321,6 +324,16 @@ public <O> CompletableFuture<Void> publish(String topicName, O object, Schema<O>
             try {
                 Producer<O> newProducer = ((ProducerBuilderImpl<O>) producerBuilder.clone())
                         .schema(schema)
+                        .blockIfQueueFull(true)
+                        .enableBatching(true)
+                        .batchingMaxPublishDelay(10, TimeUnit.MILLISECONDS)
+                        .compressionType(CompressionType.LZ4)
+                        .hashingScheme(HashingScheme.Murmur3_32Hash) //
+                        .messageRoutingMode(MessageRoutingMode.CustomPartition)
+                        .messageRouter(FunctionResultRouter.of())
+                        // set send timeout to be infinity to prevent potential deadlock with consumer
+                        // that might happen when consumer is blocked due to unacked messages
+                        .sendTimeout(0, TimeUnit.SECONDS)
                         .topic(topicName)
                         .properties(InstanceUtils.getProperties(componentType,
                                 FunctionDetailsUtils.getFullyQualifiedName(
diff --git a/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/sink/PulsarSink.java b/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/sink/PulsarSink.java
index 3195a82b742ea..717ac1051f547 100644
--- a/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/sink/PulsarSink.java
+++ b/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/sink/PulsarSink.java
@@ -85,7 +85,7 @@ public <T> Producer<T> createProducer(PulsarClient client, String topic, String
             ProducerBuilder<T> builder = client.newProducer(schema)
                     .blockIfQueueFull(true)
                     .enableBatching(true)
-                    .batchingMaxPublishDelay(1, TimeUnit.MILLISECONDS)
+                    .batchingMaxPublishDelay(10, TimeUnit.MILLISECONDS)
                     .compressionType(CompressionType.LZ4)
                     .hashingScheme(HashingScheme.Murmur3_32Hash) //
                     .messageRoutingMode(MessageRoutingMode.CustomPartition)