diff --git a/.gitignore b/.gitignore
index bfd66de..dcb2577 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,7 +3,10 @@ server/src/*.pem
 client/pkg
 client/out
 .direnv
-client/index.js
-client/module.js
-client/module.d.ts
+client/epoxy-bundled.js
+client/epoxy-module-bundled.js
+client/epoxy-module-bundled.d.ts
+client/epoxy.js
+client/epoxy.d.ts
+client/epoxy.wasm
 pnpm-lock.yaml
diff --git a/Cargo.toml b/Cargo.toml
index 1927a61..2e7eb18 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,3 +4,7 @@ members = ["server", "client", "wisp"]
 
 [patch.crates-io]
 rustls-pki-types = { git = "https://github.com/r58Playz/rustls-pki-types" }
+
+[profile.release]
+lto = true
+opt-level = 'z'
diff --git a/client/build.sh b/client/build.sh
index 68a1dbe..6b0a324 100755
--- a/client/build.sh
+++ b/client/build.sh
@@ -11,21 +11,25 @@ wasm-bindgen --weak-refs --target no-modules --no-modules-global epoxy --out-dir
 echo "[ws] bindgen finished"
 
 mv out/epoxy_client_bg.wasm out/epoxy_client_unoptimized.wasm
-time wasm-opt -O4 out/epoxy_client_unoptimized.wasm -o out/epoxy_client_bg.wasm
+time wasm-opt -Oz out/epoxy_client_unoptimized.wasm -o out/epoxy_client_bg.wasm
 echo "[ws] optimized"
 
 AUTOGENERATED_SOURCE=$(<"out/epoxy_client.js")
 WASM_BASE64=$(base64 -w0 out/epoxy_client_bg.wasm)
 AUTOGENERATED_SOURCE=${AUTOGENERATED_SOURCE//__wbg_init(input) \{/__wbg_init() \{let input=\'data:application/wasm;base64,$WASM_BASE64\'}
 AUTOGENERATED_SOURCE=${AUTOGENERATED_SOURCE//return __wbg_finalize_init\(instance\, module\);/__wbg_finalize_init\(instance\, module\); return epoxy}
-echo "$AUTOGENERATED_SOURCE" > index.js
-cp index.js module.js
-echo "module.exports = epoxy" >> module.js
+echo "$AUTOGENERATED_SOURCE" > epoxy-bundled.js
+cp epoxy-bundled.js epoxy-module-bundled.js
+echo "module.exports = epoxy" >> epoxy-module-bundled.js
 
 AUTOGENERATED_TYPEDEFS=$(<"out/epoxy_client.d.ts")
 AUTOGENERATED_TYPEDEFS=${AUTOGENERATED_TYPEDEFS%%export class IntoUnderlyingByteSource*}
-echo "$AUTOGENERATED_TYPEDEFS" >"module.d.ts"
-echo "} export default function epoxy(): Promise<typeof wasm_bindgen>;" >> "module.d.ts"
+echo "$AUTOGENERATED_TYPEDEFS" >"epoxy-module-bundled.d.ts"
+echo "} export default function epoxy(): Promise<typeof wasm_bindgen>;" >> "epoxy-module-bundled.d.ts"
+
+cp out/epoxy_client.js epoxy.js
+cp out/epoxy_client.d.ts epoxy.d.ts
+cp out/epoxy_client_bg.wasm epoxy.wasm
 
 rm -rf out/
 echo "[ws] done!"
diff --git a/client/demo.js b/client/demo.js
index da2d24d..0a39700 100644
--- a/client/demo.js
+++ b/client/demo.js
@@ -8,13 +8,20 @@
     const should_perf_test = (new URL(window.location.href)).searchParams.has("perf_test");
     const should_ws_test = (new URL(window.location.href)).searchParams.has("ws_test");
 
+    const log = (str) => {
+        let el = document.createElement("div");
+        el.innerText = str;
+        document.getElementById("logs").appendChild(el);
+        console.warn(str);
+    }
+
     let { EpoxyClient } = await epoxy();
 
     const tconn0 = performance.now();
     // args: websocket url, user agent, redirect limit 
     let epoxy_client = await new EpoxyClient("wss://localhost:4000", navigator.userAgent, 10);
     const tconn1 = performance.now();
-    console.warn(`conn establish took ${tconn1 - tconn0} ms or ${(tconn1 - tconn0) / 1000} s`);
+    log(`conn establish took ${tconn1 - tconn0} ms or ${(tconn1 - tconn0) / 1000} s`);
 
 
     if (should_feature_test) {
@@ -47,20 +54,22 @@
         const num_tests = 10;
 
         let total_mux = 0;
-        for (const _ of Array(num_tests).keys()) {
+        for (const i of Array(num_tests).keys()) {
+            log(`running mux test ${i}`);
             total_mux += await test_mux("https://httpbin.org/get");
         }
         total_mux = total_mux / num_tests;
 
         let total_native = 0;
-        for (const _ of Array(num_tests).keys()) {
+        for (const i of Array(num_tests).keys()) {
+            log(`running native test ${i}`);
             total_native += await test_native("https://httpbin.org/get");
         }
         total_native = total_native / num_tests;
 
-        console.warn(`avg mux (10) took ${total_mux} ms or ${total_mux / 1000} s`);
-        console.warn(`avg native (10) took ${total_native} ms or ${total_native / 1000} s`);
-        console.warn(`mux - native: ${total_mux - total_native} ms or ${(total_mux - total_native) / 1000} s`);
+        log(`avg mux (10) took ${total_mux} ms or ${total_mux / 1000} s`);
+        log(`avg native (10) took ${total_native} ms or ${total_native / 1000} s`);
+        log(`mux - native: ${total_mux - total_native} ms or ${(total_mux - total_native) / 1000} s`);
     } else if (should_ws_test) {
         let ws = await epoxy_client.connect_ws(
             () => console.log("opened"),
@@ -80,5 +89,5 @@
         console.warn(resp, Object.fromEntries(resp.headers));
         console.warn(await resp.text());
     }
-    if (!should_ws_test) alert("you can open console now");
+    log("done");
 })();
diff --git a/client/index.html b/client/index.html
index c8ff7ed..cf37260 100644
--- a/client/index.html
+++ b/client/index.html
@@ -2,12 +2,19 @@
 
 <head>
     <title>epoxy</title>
-    <script src="index.js"></script>
+    <script src="epoxy-bundled.js"></script>
     <script src="demo.js"></script>
+    <style>
+    body { font-family: sans-serif }
+    #logs > * { font-family: monospace }
+    </style>
 </head>
 
 <body>
-    running... (wait for the browser alert if not running ws test)
+    <div>
+        running... (wait for the browser alert if not running ws test)
+    </div>
+    <div id="logs"></div>
 </body>
 
 </html>
diff --git a/package.json b/package.json
index 3d6c731..15b432c 100644
--- a/package.json
+++ b/package.json
@@ -16,8 +16,8 @@
   "author": "MercuryWorkshop",
   "repository": "https://github.com/MercuryWorkshop/epoxy-tls",
   "license": "MIT",
-  "browser": "./client/module.js",
-  "module": "./client/module.js",
-  "main": "./client/module.js",
-  "types": "./client/module.d.ts"
+  "browser": "./client/epoxy-module-bundled.js",
+  "module": "./client/epoxy-module-bundled.js",
+  "main": "./client/epoxy-module-bundled.js",
+  "types": "./client/epoxy-module-bundled.d.ts"
 }