Help with performance

Im currently running Rust with: 16GB 3600mhz RAM RTX 3060 12GB Vram Ryzen 5 3600 And have rust on a SSD but im only getting like 65-70 fps with it going to around 85-100 in quiet/very quiet areas. Im looking at upgrading but not sure if i should get more RAM first or a better CPU. Wondering what any of you guys here recommend.