Fallout 76 - Low FPS at Harpers Ferry - What gives?

System: CPU: AMD Ryzen 5 5600X@4.65GHz RAM: 16GB G.Skill Trident Z 3200MHz, CL14 GPU: MSI Radeon 6800 16GB Gaming X Trio Resolution: 4K (3840x2160) Quality Settings: Max (except for Shadow Distance set to Medium instead of High)