long play less fps

[L.Z.]

when i play rust it start with good fps and smooth after some time i play it start to have less fps and less smooth there is something i can do? (like commands in console or something in the option of windows (10)?) no restart because when you play on official with 100 queue is impossible.

[elix]

How much RAM do you have?

[Sosig.exe]

https://i.imgur.com/Vg2BQ1q.png