Is Rust not using much of your system’s CPU? Well, a lot of players have had this complaint since the game was made available for early access. Rust is a popular (and brutal) survival game and is multiplayer-only. There’s no solo mode in this game. Players can simply join public servers or create a private server to enjoy with friends only. Since the game has to load up a lot of players on servers, Rust is definitely more CPU-intensive. Multiplayer games like Rust are usually more hard on the CPU than GPU.
As it happens, a lot of players were unable to increase/enhance frame rates in Rust beyond a certain point. When they checked the CPU and GPU usage, they realized that Rust isn’t using much of the CPU or GPU resources. Players reported that their system has a lot of resources to provide, but Rust refuses to use them to perform better.
The first thing some affected players tried was to check for bottlenecks. Sometimes, if your GPU is underpowered, it could cause a CPU bottleneck. The vice versa is also true. It could even be your system’s RAM that’s causing a bottleneck. We also recommend you upgrade your rig if this is the case. According to dismayed fans, Rust is not optimized well. It was coded on the Unity Game Engine – video games coded on Unity have been always known to be under-optimized. Escape From Tarkov, another popular video game coded in Unity, also seems to be capped at 120 frames per second for some peeps even on high-end rigs.
How to fix Rust not using all CPU?
To be honest, high usage of CPU isn’t favorable. If a video game overuses CPU resources, it will stutter and put a lot of burden on your rig. However, in Rust’s case, some peeps are facing extremely low CPU usage. This is strange, especially because Rust is considered to be CPU bound. Unfortunately, there seems to be no particular workaround to fix this problem other than upgrading your system. Some players recommend upgrading the CPU – the higher the clock speed, the better. A low CPU clock speed is often thought to be the reason behind this issue in Rust. You could also check if upgrading your system’s RAM to a faster and larger one does the trick. Click here to learn more about Rust’s system requirements.
There are a few general workarounds you can try, though. Find them below:
1) Update the graphics drivers. This is very important to enhance performance in Rust.
2) Check if running an application like Spotify or enabling overlays in the background changes anything.
3) Update Rust to the latest available version.
4) Lower all graphics settings, set your resolution to native, and check whether CPU usage increases.
5) You can try using a third-party software program (like Afterburner) to overclock your CPU if the model allows overclocking.