After several Performance Optimizations,
- https://issues.redhat.com/browse/DBZ-3770 - https://github.com/debezium/debezium/pull/2545
- https://issues.redhat.com/browse/DBZ-3870 - https://github.com/debezium/debezium/pull/2603
- https://issues.redhat.com/browse/DBZ-3887 - https://github.com/debezium/debezium/pull/2612
most of the performance bottlenecks such as JSON Serialization and producer - consumer delays are addressed.
Now JVisualVM Sampling metrics of Initital Incremental CDC reveals 15% - 25% (1.5s - 2.5s out of total execution time of 8s for 10M records) of time being spent on TableIdParser due to inefficient `replaceAll` usage for String replacement.