> ## Documentation Index
> Fetch the complete documentation index at: https://cantonfoundation-landing-margin.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Performance Best Practices

> Where to find Canton application performance guidance — moved to the consolidated Performance Optimization deep-dive.

The detailed performance guidance — on-ledger vs off-ledger trade-offs, contract design for performance, PQS query optimization, parallel command submission, traffic management, and the worked example for reducing contention — now lives with the rest of the performance material in [Performance Optimization](/appdev/deep-dives/performance-optimization).

For diagnosing performance issues in a running validator, see also:

* [Performance Issues](/global-synchronizer/troubleshooting-guide/performance-issues) and [Contention](/appdev/troubleshooting-guide/development-issues#contention-on-the-same-contract) in the troubleshooting guides.

## Next Steps

* [Security Best Practices](/appdev/modules/m7-security) — Authorization and secure configuration
* [Package Management](/appdev/modules/m7-package-management) — Efficient DAR management