### Search before asking - [x] I searched in the [issues](https://github.com/alibaba/fluss/issues) and found nothing similar. ### Description Currently, when Flink source test timestamp, it will sleep for 100ms. It's better to replace with MutualClock. ### Willingness to contribute - [ ] I'm willing to submit a PR!
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Description
Currently, when Flink source test timestamp, it will sleep for 100ms. It's better to replace with MutualClock.
Willingness to contribute