// ==UserScript==
// @name 🧠 X.com Heavy JS Optimizer+
// @name:vi 🧠 Trình tối ưu JavaScript nặng cho X.com+
// @name:en 🧠 X.com Heavy JS Optimizer+
// @name:zh-CN 🧠 X.com 高级 JavaScript 优化器+
// @name:zh-TW 🧠 X.com 高級 JavaScript 優化器+
// @name:ja 🧠 X.com 高性能 JavaScript オプティマイザー+
// @name:ko 🧠 X.com 고급 JS 최적화기+
// @name:fr 🧠 Optimiseur JavaScript Avancé pour X.com+
// @name:de 🧠 X.com Erweiterter JS-Optimierer+
// @name:es 🧠 Optimizador JS Avanzado para X.com+
// @name:pt 🧠 Otimizador JS Avançado para X.com+
// @name:it 🧠 Ottimizzatore JS Avanzato per X.com+
// @name:ru 🧠 Расширенный оптимизатор JS для X.com+
// @name:pl 🧠 Zaawansowany optymalizator JS dla X.com+
// @name:tr 🧠 X.com Gelişmiş JS Optimize Edici+
// @name:ar 🧠 مُحسِّن JavaScript متقدم لـ X.com+
// @name:hi 🧠 X.com के लिए उन्नत JS ऑप्टिमाइज़र+
// @name:th 🧠 ตัวเพิ่มประสิทธิภาพ JS ระดับสูงสำหรับ X.com+
// @name:id 🧠 Pengoptimal JS Tingkat Lanjut untuk X.com+
// @name:nl 🧠 Geavanceerde JS-Optimizer voor X.com+
// @name:uk 🧠 Розширений оптимізатор JS для X.com+
// @description Enhance X.com/Twitter performance by removing heavy CSS, throttling FPS, limiting feed DOM, blocking analytics, and optimizing offscreen videos.
// @description:vi Cải thiện hiệu năng X.com/Twitter bằng cách loại bỏ CSS nặng, giới hạn FPS, giảm tải DOM feed, chặn theo dõi và tối ưu video ngoài màn hình.
// @description:en Improve X.com/Twitter performance: removes heavy CSS, throttles FPS, limits DOM size, pauses offscreen videos, blocks analytics, and auto-enables aggressive mode when lag is detected.
// @description:zh-CN 优化 X.com/Twitter 性能：移除高负载 CSS、限制 FPS、减少 DOM、暂停屏幕外视频、屏蔽分析并在卡顿时自动启用高性能模式。
// @description:zh-TW 優化 X.com/Twitter 效能：移除高負載 CSS、限制 FPS、減少 DOM、暫停螢幕外影片、封鎖分析並在延遲時自動啟用高效模式。
// @description:ja X.com/Twitter のパフォーマンスを向上: 重い CSS を削除し、FPS を制限し、フィード DOM を縮小し、画面外の動画を一時停止し、分析をブロックし、遅延時に自動的にアグレッシブモードを有効化。
// @description:ko X.com/Twitter 성능 최적화: 무거운 CSS 제거, FPS 제한, 피드 DOM 축소, 화면 밖 동영상 일시정지, 분석 차단, 렉 발생 시 자동 공격적 모드 전환.
// @description:fr 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.
// @description:de Optimiert die Leistung von X.com/Twitter: Entfernt schwere CSS-Filter, begrenzt FPS, reduziert das DOM, pausiert Videos außerhalb des Bildschirms, blockiert Analysen und aktiviert bei Lag den aggressiven Modus automatisch.
// @description:es Mejora el rendimiento de X.com/Twitter: elimina CSS pesados, limita FPS, reduce DOM, pausa videos fuera de pantalla, bloquea analíticas y activa modo agresivo automáticamente al detectar lag.
// @description:pt Melhora o desempenho do X.com/Twitter: remove CSS pesado, limita FPS, reduz o DOM, pausa vídeos fora da tela, bloqueia análises e ativa o modo agressivo automaticamente quando há lag.
// @description:it Migliora le prestazioni di X.com/Twitter: rimuove CSS pesanti, limita FPS, riduce DOM, mette in pausa i video fuori schermo, blocca le analisi e attiva la modalità aggressiva quando rileva lag.
// @description:ru Оптимизирует X.com/Twitter: удаляет тяжелые CSS, ограничивает FPS, сокращает DOM, приостанавливает видео вне экрана, блокирует аналитику и автоматически включает агрессивный режим при лагах.
// @description:pl Popraw wydajność X.com/Twitter: usuwa ciężkie style CSS, ogranicza FPS, zmniejsza DOM, wstrzymuje filmy poza ekranem, blokuje analitykę i automatycznie włącza tryb agresywny przy lagach.
// @description:tr X.com/Twitter performansını artırır: ağır CSS filtrelerini kaldırır, FPS sınırlar, DOM’u küçültür, ekrandışı videoları duraklatır, analitiği engeller ve gecikme durumunda agresif modu otomatik açar.
// @description:ar تحسين أداء X.com/Twitter: إزالة CSS الثقيل، تحديد معدل الإطارات، تقليل DOM، إيقاف الفيديوهات خارج الشاشة، حظر التحليلات، وتفعيل الوضع العدواني تلقائيًا عند التأخير.
// @description:hi X.com/Twitter का प्रदर्शन बेहतर करें: भारी CSS हटाएं, FPS सीमित करें, DOM कम करें, ऑफस्क्रीन वीडियो रोकें, एनालिटिक्स ब्लॉक करें और लैग पर स्वतः आक्रामक मोड चालू करें.
// @description:th ปรับปรุงประสิทธิภาพ X.com/Twitter: ลบ CSS หนัก, จำกัด FPS, ลด DOM, หยุดวิดีโอนอกหน้าจอ, บล็อกการวิเคราะห์ และเปิดโหมดแรงอัตโนมัติเมื่อแลค.
// @description:id Meningkatkan performa X.com/Twitter: menghapus CSS berat, membatasi FPS, mengurangi DOM, menjeda video di luar layar, memblokir analitik, dan otomatis mengaktifkan mode agresif saat lag terdeteksi.
// @description:nl Verbeter de prestaties van X.com/Twitter: verwijdert zware CSS, beperkt FPS, vermindert DOM, pauzeert video's buiten beeld, blokkeert analyses en activeert automatisch agressieve modus bij lag.
// @description:uk Оптимізує X.com/Twitter: видаляє важкі CSS, обмежує FPS, скорочує DOM, призупиняє відео поза екраном, блокує аналітику та автоматично вмикає агресивний режим при лагах.
// @author Oppai1442
// @namespace https://greasyfork.org/users/oppai1442
// @license MIT
// @homepageURL https://greasyfork.org/scripts/xcom-heavy-js-optimizer
// @version 1.3.2
// @icon https://x.com/favicon.ico
// @match https://x.com/*
// @match https://twitter.com/*
// @grant GM_registerMenuCommand
// @run-at document-start
// ==/UserScript==
(() => {
'use strict';
// Kill React DevTools hook & metrics early
delete window.__REACT_DEVTOOLS_GLOBAL_HOOK__;
Object.defineProperty(window, '__REACT_DEVTOOLS_GLOBAL_HOOK__', {
value: {},
writable: false,
configurable: false
});
// ========= Config =========
const LS_KEY_MODE = '__x_opt_aggressive__';
const LS_KEY_LIMIT = '__x_opt_limit__';
const LS_KEY_BLOCK = '__x_opt_block_metrics__';
let AGGRESSIVE = localStorage.getItem(LS_KEY_MODE) === '1';
let LIMIT_FEED = Number(localStorage.getItem(LS_KEY_LIMIT) ?? 60); // số tweet tối đa giữ lại trong DOM
let BLOCK_METRICS = localStorage.getItem(LS_KEY_BLOCK) === '1';
const TARGET_FPS = 45; // Aggressive rAF cap
const LONGTASK_AUTO_ON_MS = 1500; // tổng longtask trong ~5s để tự bật aggressive
const LONGTASK_ULTRA_ON_MS = 3000; // ngưỡng bật "siêu gắt" trong runtime
const MAX_VIDEOS_DECODE = 1; // chỉ 1 video hoạt động
// ========= Menu =========
if (typeof GM_registerMenuCommand === 'function') {
GM_registerMenuCommand(`Aggressive: ${AGGRESSIVE ? 'ON' : 'OFF'}`, () => {
AGGRESSIVE = !AGGRESSIVE;
localStorage.setItem(LS_KEY_MODE, AGGRESSIVE ? '1' : '0');
location.reload();
});
GM_registerMenuCommand(`Giới hạn tweet DOM (hiện: ${LIMIT_FEED})`, () => {
const v = prompt('Giới hạn số tweet giữ lại trong DOM (0 = không giới hạn):', String(LIMIT_FEED));
if (v == null) return;
const n = Math.max(0, parseInt(v, 10) || 0);
LIMIT_FEED = n;
localStorage.setItem(LS_KEY_LIMIT, String(n));
alert('OK! Reload để áp dụng.');
});
GM_registerMenuCommand(`Block metrics rác: ${BLOCK_METRICS ? 'ON' : 'OFF'}`, () => {
BLOCK_METRICS = !BLOCK_METRICS;
localStorage.setItem(LS_KEY_BLOCK, BLOCK_METRICS ? '1' : '0');
alert('OK! Reload để áp dụng.');
});
}
// ========= Utils =========
const onReady = (fn) => (document.readyState === 'loading')
? document.addEventListener('DOMContentLoaded', fn, { once: true })
: fn();
const injectCSS = (css) => {
const el = document.createElement('style');
el.textContent = css;
document.documentElement.appendChild(el);
return el;
};
// ========= CSS: dọn compositor nặng + skip paint offscreen =========
// - content-visibility: auto → bỏ render offscreen, cực kỳ lợi cho feed dài
// - contain-intrinsic-size: tránh layout nhảy; 800px là giá trị "đệm" hợp lý cho tweet có media
injectCSS(`
* { backdrop-filter: none !important; }
[style*="backdrop-filter"], [style*="filter: blur"], *[style*="blur("] { filter: none !important; }
html, body, * { scroll-behavior: auto !important; }
video { transform: none !important; will-change: auto !important; background-color: black !important; }
article[role="article"], [data-testid="cellInnerDiv"] {
content-visibility: auto !important;
contain: layout paint style !important;
contain-intrinsic-size: 800px !important;
}
/* bớt gradient layer nặng */
[style*="linear-gradient("] { background-image: none !important; }
* { will-change: auto !important; transform: none !important; }
`);
if (AGGRESSIVE) {
injectCSS(`
* { animation: none !important; transition: none !important; }
`);
}
// ========= Ép passive listeners cho scroll/touch/wheel =========
(function patchAddEventListener() {
const origAdd = EventTarget.prototype.addEventListener;
const passiveEvents = new Set(['touchstart', 'touchmove', 'wheel', 'mousewheel', 'scroll']);
EventTarget.prototype.addEventListener = function (type, listener, options) {
if (passiveEvents.has(type)) {
if (options == null) options = { passive: true };
else if (typeof options === 'boolean') options = { capture: options, passive: true };
else if (typeof options === 'object' && options.passive == null) options = { ...options, passive: true };
}
return origAdd.call(this, type, listener, options);
};
})();
// ========= Chặn preload/prefetch link =========
const nukePreloads = () => {
document.querySelectorAll('link[rel="preload"], link[rel="prefetch"]').forEach(l => l.remove());
};
new MutationObserver(nukePreloads).observe(document.documentElement, { childList: true, subtree: true });
onReady(nukePreloads);
// ========= (Tuỳ chọn) Block metrics rác (an toàn, không đụng feed chính) =========
// Chặn những endpoint "client_event", "impression", "engagement", "scribe", "metrics" để bớt spam
if (BLOCK_METRICS) {
const noisy = /\/(client_event|impression|engagement|scribe|metrics|ad_event)/i;
const origFetch = window.fetch.bind(window);
window.fetch = (input, init) => {
try {
const url = (typeof input === 'string') ? input : (input?.url ?? '');
if (noisy.test(url)) {
// trả response rỗng 204
return Promise.resolve(new Response(null, { status: 204 }));
}
} catch { }
return origFetch(input, init);
};
}
// ========= Video: tối ưu + pause offscreen + chỉ 1 video hoạt động =========
const activeVideos = new Set();
let playingNow = null;
const optimizeVideo = (v) => {
if (!v || v.__xOptimized) return;
v.__xOptimized = true;
v.autoplay = false;
v.loop = false;
v.removeAttribute('controls');
v.preload = 'metadata';
v.style.transform = 'none';
v.style.willChange = 'auto';
v.style.backgroundColor = 'black';
// chỉ 1 video hoạt động → pause cái khác khi play cái này
v.addEventListener('play', () => {
if (playingNow && playingNow !== v) {
try { playingNow.pause(); } catch { }
}
playingNow = v;
activeVideos.add(v);
}, { passive: true });
v.addEventListener('pause', () => {
activeVideos.delete(v);
if (playingNow === v) playingNow = null;
}, { passive: true });
};
const scanVideos = (root = document) => {
if (!root || typeof root.querySelectorAll !== 'function') return;
root.querySelectorAll('video').forEach(optimizeVideo);
};
onReady(scanVideos);
new MutationObserver((muts) => {
for (const m of muts) {
if (m.addedNodes) {
m.addedNodes.forEach(node => {
if (node && node.nodeType === 1) {
if (node.tagName === 'VIDEO') optimizeVideo(node);
else if (node.querySelectorAll) scanVideos(node);
}
});
}
}
}).observe(document.documentElement, { childList: true, subtree: true });
// Pause video khi offscreen (tiết kiệm decode)
const io = new IntersectionObserver((entries) => {
for (const e of entries) {
const v = e.target;
if (!(v instanceof HTMLVideoElement)) continue;
if (e.isIntersecting) {
// nếu không có video nào đang chạy, cho phép play khi user bấm
} else {
try { v.pause(); } catch { }
}
}
}, { root: null, threshold: 0.001 });
onReady(() => document.querySelectorAll('video').forEach(v => io.observe(v)));
// ========= Giới hạn DOM feed: giữ tối đa N tweet để giảm memory/layout =========
function gcFeed() {
if (!LIMIT_FEED) return;
const nodes = document.querySelectorAll('article[role="article"]');
if (nodes.length <= LIMIT_FEED) return;
// ẩn bớt mấy cái quá cũ (nhanh, ít rủi ro hơn remove)
for (let i = 0; i < nodes.length - LIMIT_FEED; i++) {
const el = nodes[i];
if (!el.__xHidden) {
el.style.display = 'none';
el.__xHidden = true;
// giải phóng video nếu có
el.querySelectorAll('video').forEach(v => {
try { v.pause(); } catch { }
});
}
}
}
setInterval(gcFeed, 1500);
// ========= Aggressive mode runtime (rAF cap + min setInterval) =========
const origRAF = window.requestAnimationFrame.bind(window);
const origSetInterval = window.setInterval.bind(window);
let lastRAF = 0;
let useRAFCap = AGGRESSIVE;
let minInterval = AGGRESSIVE ? 100 : 0;
window.requestAnimationFrame = (cb) => {
if (!useRAFCap) return origRAF(cb);
return origRAF((ts) => {
if (ts - lastRAF >= (1000 / TARGET_FPS)) {
lastRAF = ts;
try { cb(ts); } catch { }
} else {
origRAF(cb);
}
});
};
window.setInterval = (fn, delay, ...args) => {
const d = (delay == null || delay < minInterval) ? (minInterval || delay || 0) : delay;
return origSetInterval(fn, d, ...args);
};
// ========= Auto-detect long tasks → tự bật Aggressive/Ultra =========
try {
// dùng PerformanceObserver (Long Task API)
let bucket = 0;
const po = new PerformanceObserver((list) => {
for (const e of list.getEntries()) {
bucket += e.duration || 0;
}
});
po.observe({ type: 'longtask', buffered: true });
setInterval(() => {
const total = bucket; bucket = 0;
// tự bật aggressive nếu lag nhiều
if (!useRAFCap && total > LONGTASK_AUTO_ON_MS) {
useRAFCap = true; minInterval = 100;
console.warn('[Oppai1442] Aggressive ON (auto): longtasks=%dms', total | 0);
}
// siêu gắt nếu quá nặng
if (total > LONGTASK_ULTRA_ON_MS) {
useRAFCap = true; minInterval = 150; // nâng min interval lên thêm
document.documentElement.classList.add('x-ultra');
injectCSS(`.x-ultra *{ animation:none!important; transition:none!important; }`);
console.warn('[Oppai1442] Ultra mode ON: longtasks=%dms', total | 0);
}
}, 5000);
} catch { }
// ========= Safety: pause hết khi tab ẩn =========
document.addEventListener('visibilitychange', () => {
if (document.hidden) {
document.querySelectorAll('video').forEach(v => { try { v.pause(); } catch { } });
}
}, { passive: true });
// ========= Ảnh: ép lazy/async decode (nhẹ layout) =========
const tuneImg = (img) => {
if (!img) return;
img.loading = 'lazy';
img.decoding = 'async';
};
const scanImg = (root = document) => {
if (!root || typeof root.querySelectorAll !== 'function') return;
root.querySelectorAll('img').forEach(tuneImg);
};
onReady(scanImg);
new MutationObserver((muts) => {
for (const m of muts) for (const n of m.addedNodes) {
if (n && n.nodeType === 1) {
if (n.tagName === 'IMG') tuneImg(n);
else if (n.querySelectorAll) scanImg(n);
}
}
}).observe(document.documentElement, { childList: true, subtree: true });
// Brutal block all beacons & performance observers
navigator.sendBeacon = () => true;
const origPO = window.PerformanceObserver;
window.PerformanceObserver = class extends origPO {
constructor(type, ...a) {
if (typeof type === 'object' && /(paint|longtask|resource)/i.test(type.type || '')) {
return { observe:()=>{}, disconnect:()=>{} };
}
return new origPO(...arguments);
}
};
setInterval(() => {
const articles = document.querySelectorAll('article[role="article"]');
if (articles.length > 80) {
for (let i = 0; i < articles.length - 60; i++) {
articles[i].remove();
}
}
}, 2000);
// Block global MutationObserver creation (except internal)
const OrigMO = window.MutationObserver;
window.MutationObserver = class extends OrigMO {
constructor(cb, opt) {
if (document.readyState !== 'complete') return new OrigMO(cb, opt);
// block post-hydration observers
if (opt && opt.subtree && opt.childList) return { observe:()=>{}, disconnect:()=>{} };
return new OrigMO(cb, opt);
}
};
})();
