diff --git a/tools/cheat-builder/build.js b/tools/cheat-builder/build.js
index cb31425..32a1fd4 100644
--- a/tools/cheat-builder/build.js
+++ b/tools/cheat-builder/build.js
@@ -1,10 +1,25 @@
 const { readFile, writeFile } = require("fs/promises");
 const transform = require("./worker");
+const fastly = process.env.OAFCHT_NO_ITER==='1';
 
 const loadlist = async () => {
     const datfile = await readFile("./serial.json");
     const datas = JSON.parse(datfile.toString());
-    return Object.entries(datas).filter(n => n[1] != "????");
+    // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+    // ---------------原来的代码在这里------------------
+    if( fastly === false ){
+        return Object.entries(datas).filter(n => n[1] != "????");
+    }
+    // ---------------修改的代码在这里------------------
+    const entries = Object.entries(datas);
+    const retval = new Array(entries.length);
+    let l = 0;
+    for( const data of entries ){
+        if( data[1] !== "????" ) retval[l++] = data;
+    }
+    retval.length = l;
+    return retval;
+    // ---------------修改的代码完结处------------------
 }
 
 const format = valid => {
@@ -32,9 +47,10 @@ const format = valid => {
             return a;
         }
     }
-    const getnametable = list => list.reduce((r, { serial, cheat }, idx, arr) => {
+    // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+    // ---------------原来的代码在这里------------------
+    const getnametable = fastly === false ? list => list.reduce((r, { serial, cheat }, idx, arr) => {
         const val = serial.slice(0, -1);
-//console.log("looping", val, r[4], r[2], cheat.length)
         const size1 = size.get(r[1]);
         if (val != r[4]) {
             if (size1 > 0 && r[2] - r[1].at(size1 - 1) > r[3])
@@ -50,9 +66,37 @@ const format = valid => {
             r[1] = concat(r[1], [r[2]]);
         }
         return r;
-    }, [concat(new Uint8Array(concatUnit), []), concat(new Uint16Array(concatUnit), []), 0, 0, ""]);
+    }, [concat(new Uint8Array(concatUnit), []), concat(new Uint16Array(concatUnit), []), 0, 0, ""])
+    // ---------------修改的代码在这里------------------
+    : list => {
+        const ret = [concat(new Uint8Array(concatUnit), []), concat(new Uint16Array(concatUnit), []), 0, 0, ""];
+        const {length} = list;
+        for( let idx=0; idx < length; ++idx ){
+            const { serial, cheat } = list[idx];
+            const val = serial.slice(0, -1);
+            const size1 = size.get(ret[1]);
+            if( val != ret[4] ){
+                if( size1 > 0 && ret[2] - ret[1].at(size1 - 1) > ret[3] )
+                    ret[3] = ret[2] - ret[1].at(size1 - 1);
+                ret[0] = concat(ret[0], enc.encode(val))
+                ret[1] = concat(ret[1], [ret[2]]);
+                ret[4] = val;
+            }
+            ret[2] = ret[2] + cheat.length;
+            if( idx + 1 == length ){
+                if( ret[2] - ret[1].at(size1 - 1) > ret[3] )
+                    ret[3] = ret[2] - ret[1].at(size1 - 1);
+                ret[1] = concat(ret[1], [ret[2]]);
+           }
+        }
+        return ret;
+    };
+    // ---------------修改的代码完结处------------------
 
-    const expandcheat = (list, base) => list.reduce((r, { cheat, serial }) => {
+
+    // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+    // ---------------原来的代码在这里------------------
+    const expandcheat = fastly === false ? (list, base) => list.reduce((r, { cheat, serial }) => {
         const val = serial.charCodeAt(3);
         return cheat.reduce((r, { id, bin }) => {
             const off = r[2] + size.get(r[1]);
@@ -60,7 +104,23 @@ const format = valid => {
             r[1] = concat(r[1], bin);
             return r;
         }, r);
-    }, [concat(new Uint32Array(concatUnit), []), concat(new Uint8Array(concatUnit), []), align(base, 32)]);
+    }, [concat(new Uint32Array(concatUnit), []), concat(new Uint8Array(concatUnit), []), align(base, 32)])
+    // ---------------修改的代码在这里------------------
+    : (list, base) => {
+        const ret = [concat(new Uint32Array(concatUnit), []), concat(new Uint8Array(concatUnit), []), align(base, 32)];
+        const {length} = list;
+        for( let idx=0; idx < length; ++idx ){
+            const { cheat, serial } = list[idx];
+            const val = serial.charCodeAt(3);
+            for( const { id, bin } of cheat ){
+                const off = ret[2] + size.get(ret[1]);
+                ret[0] = concat(ret[0], [val | (off << 3), id])
+                ret[1] = concat(ret[1], bin);
+            }
+        }
+        return ret;
+    };
+    // ---------------修改的代码完结处------------------
 
     const linkbuffer = (arr, ...l) => {
         for (let i of l) {
@@ -106,15 +166,41 @@ const start = async () => {
     let list = await loadlist();
     let roms = await transform(list);
     console.log(`all rom has ${roms.length} and time ${performance.now() - begin}`);
-    roms = Object.entries(roms.reduce((r, data) => {
-        if (!data) return r;
+    // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+    // ---------------原来的代码在这里------------------
+    if( fastly === false ){
+        roms = Object.entries(roms.reduce((r, data) => {
+            if (!data) return r;
+    
+            const { serial, cheat } = data;
+            if (!cheat || cheat.length == 0) return r;
+            if (serial in r) r[serial] = [...r[serial], ...cheat];
+            else r[serial] = cheat;
+            return r;
+        }, {})).map(([serial, cheat]) => ({ serial, cheat }));
+    }
+    // ---------------修改的代码在这里------------------
+    else
+    {
+        const res = new Array(10240), idx = {};
+        let l = 0;
+        for( const data of roms ){
+            if( !data ) continue;
 
-        const { serial, cheat } = data;
-        if (!cheat || cheat.length == 0) return r;
-        if (serial in r) r[serial] = [...r[serial], ...cheat];
-        else r[serial] = cheat;
-        return r;
-    }, {})).map(([serial, cheat]) => ({ serial, cheat }));
+            const { serial, cheat } = data;
+            if( !cheat || cheat.length == 0 ) continue;
+
+            const cheats = idx[serial] ? idx[serial] : [];
+            cheats.push(...cheat);
+            if( !idx[serial] ){
+                idx[serial] = cheats;
+                res[l++] = { serial, cheat: cheats };
+            }
+        }
+        res.length = l;
+        roms = res;
+    }
+    // ---------------修改的代码完结处------------------
 
     const content = await format( roms );
     await writeFile( "gba.acl", content );
diff --git a/tools/cheat-builder/cht.js b/tools/cheat-builder/cht.js
index 5c8c047..d4939c4 100644
--- a/tools/cheat-builder/cht.js
+++ b/tools/cheat-builder/cht.js
@@ -18,7 +18,8 @@ const nine = "9".charCodeAt();
 const a = "a".charCodeAt();
 const f = "f".charCodeAt();
 const conv = new TextEncoder();
-const fastly = process.env.OAFCHT_NO_REUSE==='1';
+const noiter = process.env.OAFCHT_NO_ITER==='1';
+const noreuse = process.env.OAFCHT_NO_REUSE==='1';
 
 /**
  * 这个函数做了一些数据复用处理，能省下来一点文件容量
@@ -224,34 +225,76 @@ const assembleCheat = (list, dup, hole) => {
     else if (0 == (n & 0xf000000)) return (n & 0xffff) | 0x3000000;
     else return n;
   };
-  const addrval = list.reduce((r, command) => {
-    let addr = fromTaddr(command[0]);
-    let len = command.length - 1;
-    for( let pos=0; pos < len; ++pos) {
-      r.set(addr+pos, parseInt(command[pos+1], 16))
-    }
-    return r;
-  }, new Map());
-  const ordered = Array.from(addrval).sort((a, b) => a[0] - b[0]);
-  const blocks = ordered.reduce((arr, [addr, value]) => {
-    dup.set(addr, hole);
-    if (arr.length == 0) {
-      arr.push({ addr, value, count: 1 });// cnt addr value
-    }
-    else {
-      let cur = arr.at(-1);
-      if (cur.value == value) {
-        ++cur.count;
+  // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+  // ---------------原来的代码在这里------------------
+  const addrval = new Map();
+  if( noiter === false ){
+    list.forEach((command) => {
+      let addr = fromTaddr(command[0]);
+      let len = command.length - 1;
+      for( let pos=0; pos < len; ++pos) {
+        addrval.set(addr+pos, parseInt(command[pos+1], 16))
+      }
+    });
+  } 
+  // ---------------修改的代码在这里------------------
+  else {
+    for( const command of list ){
+      const addr = fromTaddr(command[0]);
+      const len = command.length - 1;
+      for( let pos=0; pos < len; ++pos) {
+        addrval.set(addr+pos, parseInt(command[pos+1], 16));
       }
-      else arr.push({ addr, value, count: 1 });
     }
-    return arr;
-  }, []);
-  return Uint32Array.from(blocks.reduce((r, block) => {
-    r.push( block.addr );
-    r.push( (block.count << 8) | block.value )
-    return r;
-  }, []))
+  }
+  // ---------------修改的代码完结处------------------
+  const ordered = Array.from(addrval).sort((a, b) => a[0] - b[0]);
+  // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+  // ---------------原来的代码在这里------------------
+  if( noiter === false ){
+    const blocks = ordered.reduce((arr, [addr, value]) => {
+      dup.set(addr, hole);
+      if (arr.length == 0) {
+        arr.push({ addr, value, count: 1 });// cnt addr value
+      }
+      else {
+        let cur = arr.at(-1);
+        if (cur.value == value && cur.addr + cur.count == addr) {
+          ++cur.count;
+        }
+        else arr.push({ addr, value, count: 1 });
+      }
+      return arr;
+    }, []);
+    return Uint32Array.from(blocks.reduce((r, block) => {
+      r.push( block.addr );
+      r.push( (block.count << 8) | block.value )
+      return r;
+    }, []));
+  }
+  // ---------------修改的代码在这里------------------
+  else {
+    const blocks = new Array();
+    let curr = null;
+    for( const [addr, value] of ordered ){
+      dup.set(addr, hole);
+      if( !curr ) {
+        curr = { addr, value, count: 1 };
+      }
+      else {
+        if( curr.value == value && curr.addr + curr.count == addr ) {
+          ++curr.count;
+        }
+        else {
+          blocks.push( curr.addr, (curr.count << 8) | curr.value );
+          curr = { addr, value, count: 1 };
+        }
+      }
+    }
+    if( curr ) blocks.push( curr.addr, (curr.count << 8) | curr.value );
+    return Uint32Array.from(blocks);
+  }
+  // ---------------修改的代码完结处------------------
 }
 
 const pack = (entlist, strlist, idxlist, cmdlist, xvalue) => {
@@ -338,7 +381,7 @@ const lade = (list, info, order) => {
       size.str = len;
       return off;
     };
-    const ut_addtr = fastly ? (() => { 
+    const ut_addtr = noreuse ? (() => { 
       const cache = {};
       return tr => {// 不要直接ut_pushtr，因为有些秘籍会撑爆字符串表
         if (cache[tr] != undefined) return cache[tr];
@@ -354,7 +397,20 @@ const lade = (list, info, order) => {
       const off = findIndex(strtable, code, size.str);
       return off < 0 ? ut_pushtr(code) : off;
     };
-    return list.map(ut_addtr);
+    // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+    // ---------------原来的代码在这里------------------
+    if( noiter === false ){
+      return list.map(ut_addtr);
+    }
+    // ---------------修改的代码在这里------------------
+    else {
+      let res = new Array(list.length);
+      for( let i=0; i < list.length; ++i ){
+        res[i] = ut_addtr(list[i]);
+      }
+      return res;
+    }
+    // ---------------修改的代码完结处------------------
   }
 
   const addStrIndex = list => {
@@ -400,19 +456,42 @@ const lade = (list, info, order) => {
 
   // pack
   let holedup = new Map();
-  let entbytelist = enttable.map(entry => {
-    let { id, data } = entry;
-    if (id < 0x10000) { // 收集str
-      let idxlist = id == 0 ? addString( data ) : addString(data.length > 1 ? data : []); // length==1就是开启
-      let location = addStrIndex(idxlist);
-      return Uint32Array.of(id, location, idxlist.length);
+  // 避免使用迭代器方法，减少CPU（已走过performance对比流程）
+  // ---------------原来的代码在这里------------------
+  let entbytelist;
+  if( noiter === false ){
+    entbytelist = enttable.map(entry => {
+      let { id, data } = entry;
+      if (id < 0x10000) { // 收集str
+        let idxlist = id == 0 ? addString( data ) : addString(data.length > 1 ? data : []); // length==1就是开启
+        let location = addStrIndex(idxlist);
+        return Uint32Array.of(id, location, idxlist.length);
+      }
+      else {
+        let armbytecode = assembleCheat(data, holedup, id & 0xffff);
+        let location = addCommand(armbytecode);
+        return Uint32Array.of(id, location, armbytecode.length);
+      }
+    });
+  }
+  // ---------------修改的代码在这里------------------
+  else {
+    entbytelist = new Array(enttable.length);
+    for( let i=0; i < enttable.length; i++ ){
+      let { id, data } = enttable[i];
+      if (id < 0x10000) {
+        let idxlist = id == 0 ? addString( data ) : addString(data.length > 1 ? data : []); // length==1就是开启
+        let location = addStrIndex(idxlist);
+        entbytelist[i] = Uint32Array.of(id, location, idxlist.length);
+      }
+      else {
+        let armbytecode = assembleCheat(data, holedup, id & 0xffff);
+        let location = addCommand(armbytecode);
+        entbytelist[i] = Uint32Array.of(id, location, armbytecode.length);
+      }
     }
-    else {
-      let armbytecode = assembleCheat(data, holedup, id & 0xffff);
-      let location = addCommand(armbytecode);
-      return Uint32Array.of(id, location, armbytecode.length);
-    }
-  });
+  }
+  // ---------------修改的代码完结处------------------
   cmdtable = cmdtable.slice(0, size.cmd);
   strtable = strtable.slice(0, size.str);
   idxtable = idxtable.slice(0, size.idx);
diff --git a/tools/cheat-builder/worker.js b/tools/cheat-builder/worker.js
index 2ecb31f..af50dd6 100644
--- a/tools/cheat-builder/worker.js
+++ b/tools/cheat-builder/worker.js
@@ -3,6 +3,21 @@ const {Worker, isMainThread, parentPort, workerData} = require("worker_threads")
 const readCht = require("./cht");
 const { readFileSync } = require("fs");
 const ncpu = require("os").availableParallelism();
+const fastly = process.env.OAFCHT_NO_ITER==='1';
+
+const handlelist = fastly === false ? list => list.map( game => {
+    const [order, serial, title] = game;
+    const file = `./gba/${order}.u8`;
+    return loadcheat(order, serial, title ?? order, file);
+}) : list => {
+    const res = new Array(list.length);
+    for( let i=0; i < list.length; i++ ) {
+        const [order, serial, title] = list[i];
+        const file = `./gba/${order}.u8`;
+        res[i] = loadcheat(order, serial, title ?? order, file) ;
+    }
+    return res;
+};
 
 const loadcheat = (order, serial, title, file) => {
     try {
@@ -32,11 +47,7 @@ if( isMainThread ) {
                 });
             } );
         });
-    } : list => Promise.resolve( list.map( game => {
-        const [order, serial, title] = game;
-        const file = `./gba/${order}.u8`;
-        return loadcheat(order, serial, title ?? order, file);
-    } ) );
+    } : list => Promise.resolve( handlelist(list) );
 }
 else {
     const list = workerData;
@@ -45,11 +56,5 @@ else {
         const file = `./gba/${order}.u8`;
         return loadcheat(order, serial, title ?? order, file);
     } ) ).then( res => parentPort.postMessage(res) );*/
-    parentPort.postMessage(
-        list.map( game => {
-            const [order, serial, title] = game;
-            const file = `./gba/${order}.u8`;
-            return loadcheat(order, serial, title ?? order, file);
-        })
-    );
+    parentPort.postMessage( handlelist(list) );
 }