Before Creating the Bug Report

• I found a bug, not just asking a question, which should be created in GitHub Discussions.

• I have searched the GitHub Issues and GitHub Discussions of this repository and believe that this is not a duplicate.

• I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

Runtime platform environment

Ubuntu 24.04

RocketMQ version

5.3.1

JDK Version

1.8

Describe the Bug

Bad performace of delay message in rocksdb consumequeue

Steps to Reproduce

1. set storeType=defaultRocksDB in broker.conf
2. send delay messages with delaylever=2 using cd benchmark;sh producer.sh -n localhost:9876 -t testTopic -d true -e 2
3. watch delay message count using mqadmin topicstatus -n localhost:9876 -t SCHEDULE_TOPIC_XXXX
4. watch delay message deliver count using cat ${storeRootPath}/config/delayOffset.json

What Did You Expect to See?

delay message are deliverd quick.

What Did You See Instead?

delay message are deliverd slow.

Additional Context

No response