feat: optimize robyn

[sansyrox]

Description

This PR optimizes more robyn rust

Summary

This PR optimizes robyn

PR Checklist

Please ensure that:

• The PR contains a descriptive title
• The PR contains a descriptive summary of the changes
• You build and test your changes before submitting a PR.
• You have added relevant documentation
• You have added relevant tests. We prefer integration tests wherever possible

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[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
robyn	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 15, 2025 10:14am

[recurseml]

✨ No issues found! Your code is sparkling clean! ✨

[codspeed-hq]

CodSpeed Performance Report

Merging #1181 will not alter performance

_{Comparing optimize/robynrs (7ba0fa7) with main (ccfb40b)}

Summary

✅ 138 untouched benchmarks