I have a sharded mongodb-cluster 8.0.15-ent deployed on OpenShift 4.18 as a 3 node compact cluster. Total shards - 6 , mongos -3 , config -3.

I have loaded 1.5 TB of data into this cluster. When I run ycsb pods (6) for workloadc on mongos , I just get 3500 ops/s and if I directly hit the mongodb shard I get about 50,000 ops/s. Can I improve the router performance in this case ?

Thanks,

Kailas