[Bug] Flink engine jdbc execution time is much slower than the flink web display time

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

### Search before asking

- [X] I have searched in the [issues](https://github.com/apache/kyuubi/issues?q=is%3Aissue) and found no similar issues.

### Describe the bug

Flink engine jdbc execution time is much slower than the flink web display time

kyuubi 1.8.0 flink 1.18.0 yarn application

SELECT *
FROM TABLEA


### Affects Version(s)

1.8.0

### Kyuubi Server Log Output

_No response_

### Kyuubi Engine Log Output

_No response_

### Kyuubi Server Configurations

_No response_

### Kyuubi Engine Configurations

_No response_

### Additional context

_No response_

### Are you willing to submit PR?

- [ ] Yes. I would be willing to submit a PR with guidance from the Kyuubi community to fix.
- [ ] No. I cannot submit a PR at this time.

No source files, tests, logs, or configurations are identified. Start by reproducing the SQL query with Kyuubi 1.8.0, Flink 1.18.0, and a YARN application, then compare JDBC-reported duration with Flink Web UI timing. Done means the timing discrepancy is explained and a clearly scoped fix or regression test is identified.

Written by the indexing model from the issue text.