diff --git a/packages/nitro/src/targets/worker.ts b/packages/nitro/src/targets/worker.ts
index 534bf3eb84..f4fccd1f9c 100644
--- a/packages/nitro/src/targets/worker.ts
+++ b/packages/nitro/src/targets/worker.ts
@@ -1,13 +1,17 @@
 import { SLSTarget } from '../config'
 
+const polyfill = `
+const exports = {};
+const module = { exports };
+const process = { env: {} };
+const performance = {};
+
 // https://github.com/cabinjs/browser-hrtime
-const hrTimeP = '!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):(e="undefined"!=typeof globalThis?globalThis:e||self).hrtime=n()}(this,(function(){"use strict";var e=function(e){!function(){if("performance"in window==0&&(window.performance={}),Date.now=Date.now||function(){return(new Date).getTime()},"now"in window.performance==0){var e=Date.now();performance.timing&&performance.timing.navigationStart&&(e=performance.timing.navigationStart),window.performance.now=function(){return Date.now()-e}}}();var n=Math.floor(.001*(Date.now()-performance.now())),o=.001*performance.now(),r=Math.floor(o)+n,i=Math.floor(o%1*1e9);return e&&(r-=e[0],(i-=e[1])<0&&(r--,i+=1e9)),[r,i]};return e.bigint=function(n){var o=e(n);return 1e9*o[0]+o[1]},"undefined"!=typeof process&&void 0!==process.hrtime||void 0!==window.process||(window.process={}),void 0===process.hrtime?window.process.hrtime=e:process.hrtime}));'
+'!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):(e="undefined"!=typeof globalThis?globalThis:e||self).hrtime=n()}(this,(function(){"use strict";var e=function(e){!function(){if("performance"in window==0&&(window.performance={}),Date.now=Date.now||function(){return(new Date).getTime()},"now"in window.performance==0){var e=Date.now();performance.timing&&performance.timing.navigationStart&&(e=performance.timing.navigationStart),window.performance.now=function(){return Date.now()-e}}}();var n=Math.floor(.001*(Date.now()-performance.now())),o=.001*performance.now(),r=Math.floor(o)+n,i=Math.floor(o%1*1e9);return e&&(r-=e[0],(i-=e[1])<0&&(r--,i+=1e9)),[r,i]};return e.bigint=function(n){var o=e(n);return 1e9*o[0]+o[1]},"undefined"!=typeof process&&void 0!==process.hrtime||void 0!==window.process||(window.process={}),void 0===process.hrtime?window.process.hrtime=e:process.hrtime}));'
 
-const cjsP = 'const exports = {}; const module = {exports};'
-const processP = 'const process = {env: {}};'
-const globalP = 'const global = { process }; const window = global;'
-
-const polyfill = cjsP + processP + globalP + hrTimeP
+const global = { process };
+const window = global;
+`
 
 export const worker: SLSTarget = {
   entry: '{{ runtimeDir }}/worker',