Rebalance taking more time(causing view quiring timing out due to view indexing)

Setup details

3* CBS nodes with 200 GB data 
replica =1
eviction = value eviction
2* syncgateway

Seeing rebalance taking more time. and also index are getting rebuild during rebalance .

This is causing views quires timeout leading to outage.
syncgateway is going to hung state , all request to syncgateway are getting timeout.