diff --git a/integration_tests/cassandra-and-scylladb-sink/create_source.sql b/integration_tests/cassandra-and-scylladb-sink/create_source.sql
index 460e616aed358..94b69b9d586c6 100644
--- a/integration_tests/cassandra-and-scylladb-sink/create_source.sql
+++ b/integration_tests/cassandra-and-scylladb-sink/create_source.sql
@@ -11,10 +11,10 @@ CREATE table user_behaviors (
     connector = 'datagen',
     fields.user_id.kind = 'sequence',
     fields.user_id.start = '1',
-    fields.user_id.end = '1000',
+    fields.user_id.end = '10000000',
     fields.user_name.kind = 'random',
     fields.user_name.length = '10',
-    datagen.rows.per.second = '10'
+    datagen.rows.per.second = '1000000'
 ) FORMAT PLAIN ENCODE JSON;
 
 CREATE TABLE cassandra_types (
diff --git a/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraConfig.java b/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraConfig.java
index 7c883335cfc23..58568bc14df2b 100644
--- a/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraConfig.java
+++ b/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraConfig.java
@@ -42,6 +42,9 @@ public class CassandraConfig extends CommonSinkConfig {
     @JsonProperty(value = "cassandra.password")
     private String password;
 
+    @JsonProperty(value = "cassandra.max_batch_rows")
+    private Integer maxBatchRows = 512;
+
     @JsonCreator
     public CassandraConfig(
             @JsonProperty(value = "cassandra.url") String url,
@@ -93,4 +96,13 @@ public CassandraConfig withPassword(String password) {
         this.password = password;
         return this;
     }
+
+    public Integer getMaxBatchRows() {
+        return maxBatchRows;
+    }
+
+    public CassandraConfig withMaxBatchRows(Integer maxBatchRows) {
+        this.maxBatchRows = maxBatchRows;
+        return this;
+    }
 }
diff --git a/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraSink.java b/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraSink.java
index b0b7fb93c7b51..5a007ea0d8f27 100644
--- a/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraSink.java
+++ b/java/connector-node/risingwave-sink-cassandra/src/main/java/com/risingwave/connector/CassandraSink.java
@@ -34,7 +34,6 @@
 
 public class CassandraSink extends SinkWriterBase {
     private static final Logger LOG = LoggerFactory.getLogger(CassandraSink.class);
-    private static final Integer MAX_BATCH_SIZE = 1024 * 16;
 
     private final CqlSession session;
     private final List<SinkRow> updateRowCache = new ArrayList<>(1);
@@ -163,7 +162,7 @@ private void write_upsert(Iterator<SinkRow> rows) {
     }
 
     private void tryCommit() {
-        if (batchBuilder.getStatementsCount() >= MAX_BATCH_SIZE) {
+        if (batchBuilder.getStatementsCount() >= config.getMaxBatchRows()) {
             sync();
         }
     }