⚡ Performance Optimization - QBCore Guide for FiveM

Introduction

This tutorial turns ⚡ Performance Optimization into a clean, developer-friendly guide for QBCore/FiveM. You will follow a step-by-step flow, copy the relevant code patterns, and learn the “why” behind the setup.

Requirements

• QBCore installed and running on a dev server
• Basic Lua knowledge and comfort reading FiveM patterns
• A test workflow for iterating safely (dev server, not production)
• Optional: a code editor with Lua/FiveM helpers (VS Code recommended)

Step-by-Step Guide

Step 1: Performance Overview

In this step, you will apply the performance overview concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Step 2: Key Performance Metrics

In this step, you will apply the key performance metrics concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Step 3: Quick Performance Checklist

In this step, you will apply the quick performance checklist concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Step 4: Immediate Optimizations

In this step, you will apply the immediate optimizations concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Step 5: Advanced Optimizations

In this step, you will apply the advanced optimizations concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Step 6: Common Performance Bottlenecks

In this step, you will apply the common performance bottlenecks concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Step 7: Resource-Related Issues

In this step, you will apply the resource-related issues concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Step 8: Server-Level Issues

In this step, you will apply the server-level issues concept as a practical change: define the pieces, wire them together, then verify the behavior in your dev server.

Code Example

# Server console commands
resmon          # Resource monitor
status          # Server status
citizens        # Player count and details

Tips & Best Practices

• Keep authority on the server: validate inputs before money/database operations.
• Start with one resource/module at a time, then refactor after you verify it works.
• Use callbacks for request/response flows and events for push/UX updates.
• When you run loops, avoid freezes: always yield with Wait() (client/server) and cache hot values.