I have been playing rust recently, and my FPS stays around 70 no matter what graphics setting I have. I have a 144hz monitor, so this is sub optimal. I usually have a GPU utilization at around 50%, but VRel is capping it. My specs are:
System
OS: Windows 10 (10.0.0) 64bit
CPU
Model: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Cores: 8
Memory: 16299 MB
GPU
Model: NVIDIA GeForce GTX 1080 Ti
API: Direct3D 11.0 [level 11.1]
Memory: 11127 MB
SM: 50
System
OS: Windows 10 (10.0.0) 64bit
CPU
Model: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Cores: 8
Memory: 16299 MB
GPU
Model: NVIDIA GeForce GTX 1080 Ti
API: Direct3D 11.0 [level 11.1]
Memory: 11127 MB
SM: 50