Hi Sebastian,

unfortunately, you've not posted that many details of your test. Where did you run niping, how does it connect (network- and "SAP Router"-wise) to the target instance? The LPARs you're trying to optimize, are those running SAP applications or are these SAP routers?

As a first step, have you checked the IP-layer response time of the (client to SAP server) connection (or all individual connection legs, if crossing one or more SAP routers), via a traditional ICMP echo (AKA "ping")? If you face high network-added delay because of i.e. small-bandwidth or high latency network connections, that's what you should try to improve first.