Reduce JS Execution Time

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Quick Reference

Element Code: PE-025

Issue: Long JS execution

Impact: Delayed interactivity

Fix: Optimize JavaScript

Detection: Lighthouse

What Is This Issue?

Long-running JS blocks main thread.

Why This Matters

Impacts INP.

How to Fix

  1. Remove unused code
  2. Optimize hot paths

Tools

  • Lighthouse: JS audit

TL;DR

Reduce JavaScript execution by removing unused code.

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