FTS Nifty Throughput numbers are regressed

With latest 7.2.4-7015 build
We are seeing thput numbers are dropped by 99%
Some of them are https://perf.jenkins.couchbase.com/job/iris-multi-client/24898/ 

{}Avg. Query Throughput (queries/sec), CF2, Range Scan, FTS, not_bounded, s=1, c=1
Logs:

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-iris-multi-client-24898/172.23.100.45.zip fts

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-iris-multi-client-24898/172.23.100.55.zip N1ql

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-iris-multi-client-24898/172.23.100.70.zip kv 

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-iris-multi-client-24898/172.23.100.71.zip kv

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-iris-multi-client-24898/172.23.100.72.zip kv

More run can be found on showfast.
http://showfast.sc.couchbase.com/#/timeline/Linux/jts/N1FTY/Throughput