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max / 🧠 X.com Heavy JS Optimizer+

Name: 🧠 X.com Heavy JS Optimizer+
Author: max

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

მომხმარებლის სკრიპტის დამწყებთათვის HOWTO Chrome Edge Firefox

გამოქვეყნდა: Oct '25

ვერსია: 1.3.9.1+3c718ea განახლებულია Dec '25

რეზიუმე: Enhance X.com/Twitter performance by removing heavy CSS, throttling FPS, limiting feed DOM, blocking analytics, and optimizing offscreen videos.

საწყისი გვერდი: https://greasyfork.org/scripts/553367-x-com-heavy-js-optimizer

ლიცენზია: MIT

ანტიფუნქცია: დაუზუსტებელი

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: 21h ago

Last successful check: 21h ago

Source daily installs: 0
Source total installs: 0
OpenUserJS install requests: 0

Requests received by this site are not proof that a user completed installation.

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.

რეიტინგი: 0