Installer
max / 🧠 Optimiseur JavaScript Avancé pour X.com+

Install steps: Install a userscript manager, select Install, then open a website matched by the script.

HOWTO pour débutants en script utilisateur Chrome Edge Firefox

Publié:

Version: 1.3.9.1+3c718ea mis à jour

Résumé: Améliorez les performances de X.com/Twitter : supprime les filtres CSS lourds, limite les FPS, réduit le DOM, met en pause les vidéos hors écran, bloque l’analytique et active le mode agressif en cas de ralentissement.

Page d'accueil: https://greasyfork.org/scripts/553367-x-com-heavy-js-optimizer

Licence: MIT

Antifonctionnalité: non spécifié

Source and freshness

The following figures come from the original source and are separate from activity on this site.

Original script: 🧠 X.com 高级 JavaScript 优化器+

Source version: 1.3.9

Last source check:

Last successful check:

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0
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Clicking Install records a request on this site; it does not confirm installation. Not working after install? View troubleshooting and issues

🧠 X.com Heavy JS Optimizer+

⚡ Overview

X.com Heavy JS Optimizer+ is a high-performance userscript that dramatically reduces lag, scroll jank, and CPU load on X.com (Twitter).
It intelligently removes redundant animations, limits repainting, pauses offscreen videos, and caps JavaScript frame rates — all without breaking the core site experience.

🚀 Features

  • 🧹 Lightweight CSS Cleanup
    Removes heavy effects (backdrop-filter, blur, gradients) and disables GPU-stressing layers.

  • ⚙️ Passive Event Optimization
    Forces passive: true on scroll/touch listeners for smoother rendering.

  • 🎞️ Smart Video Control
    • Only one video can play at a time
    • Auto-pause when scrolled offscreen
    • Prevents auto-play and decoding spam

  • 🧩 DOM Feed Garbage Collector
    Keeps only the last N tweets in the DOM to prevent memory bloat.
    (Configurable from userscript menu.)

  • 📊 Metrics Blocking (Optional)
    Blocks unnecessary telemetry calls like scribe, engagement, and client_event.

  • ⚡ Aggressive Runtime Mode
    Auto-detects long tasks and dynamically limits FPS (requestAnimationFrame) to maintain stability.

  • 💤 Tab Visibility Safety
    Auto-pauses all videos when tab is hidden.

🧰 Menu Commands

Available via ViolentMonkey / TamperMonkey menu:

  • 🧠 Toggle Aggressive Mode
  • 🧩 Set feed tweet limit
  • 📊 Enable/Disable metrics blocking

🧪 Benchmarks

Scenario Before After Improvement
Scrolling feed 100+ tweets ~48–55 FPS 90+ FPS +85%
Memory footprint (avg) 1.4 GB 650 MB −53%
CPU load (video active) 45–60% 25–30% −50%

(Tested on Brave 1.72 / Win10 / Ryzen 7 5800H)

⚙️ Compatibility

✅ Works on:

🧩 Supported managers:

  • ViolentMonkey ✅
  • TamperMonkey ✅
  • FireMonkey 🟡 (limited support)

💡 Tips

  • For best results, disable other performance-altering scripts or extensions.
  • You can monitor real-time CPU impact via Chrome DevTools > Performance.

🪄 Credits

Developed by Oppai1442
Made with ❤️, caffeine, and a stubborn hatred of lag

If you encounter any issues, please leave feedback — I’ll fix them as soon as possible.

License: MIT
View source on GreasyFork

⚠️ Disclaimer:
This script modifies rendering behavior for optimization purposes.
Use at your own discretion — functionality on experimental browsers may vary.

Note: 0