JS Code node is super slow (1–2 min) while Python node is instant

Questions
1

In multiple workflows, my code (JS) nodes take 60–120s to run trivial logic, but Python nodes in the same workflow finish instantly.

This simple JS takes ~90s, no errors, just a long gap between “Start” and “Finish” in logs.

Env: n8n version: Self-hosted

Tried: new workflows, fresh instance, restart, same result.

Is there a known slowdown with the JS Code sandbox/engine?

Any settings/flags to check that impact JS Code startup?

What else should I inspect (Node.js version compatibility, container limits, logs)?

2

hello @moe312412

Please, share the workflow.

You can select all nodes with Ctrl+A and copy them with Ctrl+C. Then, past the content after pressing the button </> with Ctrl+V.