We have noticed that when we are executing Javelin for a higher iteration in a loop, it's performance gets slow significantly after few iterations.
For instance, let's assume that we are creating orders using api calls, and we give count as 100 or 150, so after few orders the performance will degrade and process becomes slow. Same has been noticed for consecutive Database update queries within loop.
Release : 4.9
Component : Javelin
We fixed this issue in latest Javelin version. Please use run mode as "Without Trace" and run the javelin flow.