Question 1

How do I record a FiveM profiler file?

Accepted Answer

Open your txAdmin live console while players are connected and run "profiler record 500". Wait for it to finish, then run "profiler saveJSON myprofile". Download myprofile.json from your server's resources/ folder.

Question 2

Is my profiler data uploaded to a server?

Accepted Answer

No. The FiveM Resource Optimizer processes everything 100% inside your browser using a Web Worker. Your profiler data never leaves your machine.

Question 3

What does the health grade mean?

Accepted Answer

The health grade is calculated from your average script time per tick and the percentage of ticks that exceeded the 25ms budget. Grades range from Excellent (under 5ms avg) to Critical (30ms+ avg or 30%+ heavy ticks).

Question 4

What is a heavy tick in FiveM?

Accepted Answer

A heavy tick is any server tick where total script execution time exceeds 25ms -half of the 50ms tick budget. FiveM runs at 20 ticks per second, so heavy ticks cause lag, rubber-banding, and desync for players.

Question 5

How do I fix FiveM server lag from scripts?

Accepted Answer

Upload your profiler file to identify the top CPU hogs. Common fixes include replacing Wait(0) with Wait(500) or Wait(1000), moving database queries out of hot loops, and disabling non-essential resources during peak hours.

FiveM Resource Optimizer

How to record a profile

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