For me it's the opposite I have an old GTX 980 with a i7 7700k CPU, 16GB RAM and the game runs perfectly on High and Very High. It will lag for sure on large battles but for now it's very smooth.
Not sure if this is just me but my game runs fine on multiplayer until I approach an enemy or I get close to combat, suddenly I am extremely laggy and its basically unplayable.
These are my specs and yes I still get this problem even on very low graphics:
Intel i7-8750H 2.20GHz
8GB RAM
NVIDIA...