R14 – The flow has two or more COMPUTE nodes in a row (WMB)

The flow has two or more COMPUTE nodes in a row (WMB)

When IIB/WMB runs a COMPUTE node, the message tree needs to copied multiple times.
Merging code from two (2) compute nodes into one (1) reduces the amount of processing and memory required to run a flow.

There is more material from IBM here: