Rust locking at 60 FPS sometimes even less

[Johnny Sins]

Hello Forum people,
I have a problem, that the game keeps locking at 60 FPS. Sometimes it even locks at 40 FPS for 2-3 minutes, which makes the game unplayable (at least for PvP). Only when I minimize the game, it goes up to 90 FPS.

What I tried so far:
-Setting the max FPS ingame to 100 (in console: "fps.limit 100")
-Deactivating v-sync for the game in my AMD GPU options
-Reading the temperature of my CPU and GPU while ingame (None has more than 65°C/149°F)

Specs:
GPU: AMD Asus Rx 580 Nitro
CPU: AMD FX 9590

Thanks for helping

[Aroven42]

AMD FX 9590 this is a problem) when cpu is weak gpu(Rx 580) also weakens.
Solution - mix your settings for more performance. use SSD for rust and 16gb memory
fps.limit 0

[Stoner Jezus]

and if you ever thinking about a new cpu, stick with amd if you use amd gpu. That would make your life more easy ;)