diff --git a/src/libs/actions/IOU/index.ts b/src/libs/actions/IOU/index.ts
index 72aab3add116..440068c7e1bb 100644
--- a/src/libs/actions/IOU/index.ts
+++ b/src/libs/actions/IOU/index.ts
@@ -14116,8 +14116,9 @@ function updateSplitTransactions({
     }
 
     if (!isReverseSplitOperation) {
+        // Use SET to update originalTransaction more quickly in Onyx as compared to MERGE to prevent UI inconsistency
         optimisticData.push({
-            onyxMethod: Onyx.METHOD.MERGE,
+            onyxMethod: Onyx.METHOD.SET,
             key: `${ONYXKEYS.COLLECTION.TRANSACTION}${originalTransactionID}`,
             value: {
                 ...originalTransaction,