[Performance Testing] Adding hosts take much longer time than baselines

Performance test setup:

Basic zone, 1 host/cluster, tyring to deploy 20K simulator Hosts, with host tags

Compared to baseline numbers, deploying hosts is taking much longer in the simulator environment

For the 1st 1000 hosts, it took about 4 mins to deploy as per baseline
With 4.2, the 1st 1000 hosts are taking almost 7 minutes

Configurations:

heap size: -Xmx12288m
db.cloud.url.params=prepStmtCacheSize=517&cachePrepStmts=true&prepStmtCacheSqlLimit=4096&includeInnodbStatusInDeadlockExceptions=true&logSlowQueries=true

For 20K Hosts, the number exponentially increases and the deployment time also increases.

Attaching trace logs of 4.2 for 1k simulator hosts deployment.