diff --git a/Jadefin.js b/Jadefin.js
index 1a94b7c..65fee0b 100644
--- a/Jadefin.js
+++ b/Jadefin.js
@@ -24,6 +24,18 @@ export default JadefinIntegrity("Jadefin", import.meta.url, () => window["Jadefi
     /** @type {any} */
     _webpackModuleFuncs;
 
+    /** @type {{[id: number]: {0: number[], 1: {[id: number]: function}}}} */
+    _webpackIdToMeta = {};
+
+    /** @type {{[id: number]: string[]}} */
+    _webpackIdToJSs = {};
+
+    /** @type {{[id: number]: string}} */
+    _webpackIdToJS = {};
+
+    /** @type {{[id: number]: string}} */
+    _webpackIdToName = {};
+
     _webpackBlacklistClient = JSON.parse(localStorage.getItem("jadefin-blacklist") || "[]");
     /** @type {typeof this._webpackBlacklistClient} */
     webpackBlacklistClient = new Proxy(this._webpackBlacklistClient, {
@@ -159,9 +171,7 @@ export default JadefinIntegrity("Jadefin", import.meta.url, () => window["Jadefi
 
         /** @type {(id: number | string) => any} */
         this.webpackLoad = id => {
-            const sid = `${id}`;
-
-            const cached = this._webpackCache[sid];
+            const cached = this._webpackCache[id];
             if (cached) {
                 return cached;
             }
@@ -169,9 +179,9 @@ export default JadefinIntegrity("Jadefin", import.meta.url, () => window["Jadefi
             const name = this.webpackIdToName(id);
 
             if (this.webpackBlacklist !== this.webpackBlacklistClient) {
-                const cachedRaw = this._webpackRawCache?.[sid];
+                const cachedRaw = this._webpackRawCache?.[id];
                 if (cachedRaw && cachedRaw.loaded) {
-                    return this._webpackCache[sid] = cachedRaw.exports;
+                    return this._webpackCache[id] = cachedRaw.exports;
                 }
 
                 // Some modules are known to break things when loaded too early.
@@ -193,7 +203,7 @@ export default JadefinIntegrity("Jadefin", import.meta.url, () => window["Jadefi
             }
 
             try {
-                return this._webpackCache[sid] = this.webpackRawLoad?.(id);
+                return this._webpackCache[id] = this.webpackRawLoad?.(id);
             } catch (e) {
                 this.log.e(`Failed to load webpack module ${id} (${name})`);
                 this.log.dir(e);
@@ -345,30 +355,61 @@ export default JadefinIntegrity("Jadefin", import.meta.url, () => window["Jadefi
         return unsafe;
     }
 
+    /**
+     * @param {any} id
+     * @return {typeof this._webpackIdToMeta[0]}
+     */
+    webpackIdToMeta(id) {
+        const meta = this._webpackIdToMeta[id];
+        if (meta) {
+            return meta;
+        }
+
+        this.log.i("Rebuilding webpackIdToMeta");
+        this._webpackIdToMeta = {};
+        for (const meta of window["webpackChunk"]) {
+            for (const pid of meta[0]) {
+                this._webpackIdToMeta[pid] = meta;
+            }
+
+            for (const cid of Object.keys(meta[1])) {
+                this._webpackIdToMeta[cid] = meta;
+            }
+        }
+
+        return this._webpackIdToMeta[id];
+    }
+
     /**
      * @param {any} id
      * @return {string[]}
      */
     webpackIdToJSs(id) {
         if (!this.webpackChunkIdToJS) {
-            return [ `${id}.unknown.chunk.js` ];
+            throw new Error("Calling webpackIdToJSs too early");
         }
 
-        const sid = `${id}`;
-
-        const meta = window["webpackChunk"].find(c => c[1][sid]);
-        if (!meta) {
-            return [ this.webpackChunkIdToJS(parseInt(sid)) ];
+        const cached = this._webpackIdToJSs[id];
+        if (cached) {
+            return cached;
         }
 
         const jss = [];
 
+        const meta = this.webpackIdToMeta(id);
+        if (!meta) {
+            jss.push(this.webpackChunkIdToJS(parseInt(id)));
+            return jss;
+        }
+
         for (const pid of meta[0]) {
             jss.push(this.webpackChunkIdToJS(pid));
+            this._webpackIdToJSs[pid] = jss;
         }
 
         for (const cid of Object.keys(meta[1])) {
             jss.push(this.webpackChunkIdToJS(cid));
+            this._webpackIdToJSs[cid] = jss;
         }
 
         return jss;
@@ -379,9 +420,13 @@ export default JadefinIntegrity("Jadefin", import.meta.url, () => window["Jadefi
      * @return {string}
      */
     webpackIdToJS(id) {
-        const jss = this.webpackIdToJSs(id);
+        const cached = this._webpackIdToJS[id];
+        if (cached) {
+            return cached;
+        }
 
-        return jss.find(c => !/^\d/.test(c)) || jss.find(c => c.startsWith(`${id}.`)) || `${id}.unknown.chunk.js`;
+        const jss = this.webpackIdToJSs(id);
+        return this._webpackIdToJS[id] = jss.find(c => !/^\d/.test(c)) || jss.find(c => c.startsWith(`${id}.`)) || `${id}.unknown.chunk.js`;
     };
 
     /**
@@ -389,18 +434,23 @@ export default JadefinIntegrity("Jadefin", import.meta.url, () => window["Jadefi
      * @return {string}
      */
     webpackIdToName(id) {
+        const cached = this._webpackIdToName[id];
+        if (cached) {
+            return cached;
+        }
+
         const name = this.webpackIdToJS(id);
 
         if (name.endsWith(".bundle.js")) {
-            return name.substring(0, name.length - ".bundle.js".length);
+            return this._webpackIdToName[id] = name.substring(0, name.length - ".bundle.js".length);
         }
 
         if (name.endsWith(".chunk.js")) {
             const split = name.lastIndexOf(".", name.length - ".chunk.js".length - 1);
-            return name.substring(0, split);
+            return this._webpackIdToName[id] = name.substring(0, split);
         }
 
-        return name;
+        return this._webpackIdToName[id] = name;
     };
 
     /**
diff --git a/mods/jade/filters/Anime4K.js b/mods/jade/filters/Anime4K.js
index 276af55..647b754 100644
--- a/mods/jade/filters/Anime4K.js
+++ b/mods/jade/filters/Anime4K.js
@@ -64,6 +64,7 @@ export default JadefinIntegrity("FilterworksAnime4KSrc", import.meta.url, () =>
     async init(name, url) {
         await super.init(name, url);
 
+        // https://github.com/monyone/Anime4K.js/
         await new Promise((resolve, reject) => {
             const loader = document.createElement("script");
             document.head.appendChild(loader);