Optimize your FiveM server and reduce lag

The problem

Your city stutters, drops FPS or the server consumes a lot even with few players.

The cause

One or more resources consume too much CPU time (ms). The most common are loops without Wait, unnecessary per-frame checks and old unoptimized resources.

The solution

Measure consumption in real time with resmon and sort by ms:

# On the client, open the console with F8 and type:
resmon 1

# Look at the CPU column (ms). At rest, a healthy resource is at 0.00-0.01 ms.
# Anything above ~1.0 ms at rest is suspicious.

Step by step

1. 1.Open `resmon 1` and sort by the ms column.
2. 2.Note the resources that spend the most AT REST (no action), which is where the waste shows.
3. 3.Review those resources for loops without `Wait` or per-frame checks.
4. 4.Update or replace old resources; many have newer optimized versions.

Related guides