One annoying problem that many developers face when utilizing AWS SWF with JavaScript is that the respondDecisionTaskCompleted call becomes slower over time. Ineffective polling, memory leaks, or an excessive number of pending tasks can all contribute to this issue. To resolve this, it is crucial to use monitoring tools such as AWS CloudWatch, optimize connection management, and delete cached credentials. Performance can also be greatly enhanced by scaling employees and putting workflow timeouts into place. Workflows are guaranteed to stay effective even after hundreds of executions with proper logging and performance testing.