Performance Issues

Why am I getting major performance issues on a top-spec PC? Even if I reduce the graphics quality settings, I get little to no improvement. Really, with the PC I have, I should be able to play this game at maximum graphics. I have no issues with any other recently released games, I can play pretty much any game at top graphics settings and get 100+ FPS even with Ray-Tracing enabled! It's just Battlefield 2042! It is terrible! Really bad laggy graphics, poor response from input controls, lagged mouse input, glitchy graphics, it really is terrible. Why release a game in such a poor state?

For Info, my PC is:

64Gb DDR-4 4000Mhz

4.6Ghz Intel i9 Extreme Edition 14-Core CPU (Watercooled)

ASUS Rampage VI Omega Extreme Motherboard

8TB NVME SSD's Samsung 970 PRO's

ASUS Strix NVidia RTX 3090 GPU

Windows 11 Enterprise

Trying to run at 4K on 4K Ultra-Wide Monitor. Even at Low or Medium Settings, Ray-Tracing Disabled. Average 20 FPS. And to top that off, the mouse latency/lag issues. My Mouse and Steelseries Apex Pro Keyboard and Steelseries Rival 650 Mouse (using cable).

Surely with a PC that cost over £8K to build should run this game at near maximum graphics? I've even tried overclocking my GPU to 2020Mhz and GPU Memory to 19612Mhz (which is a perfectly stable overclock for all other games). Nothing I try seems to resolve these performance issues. Not sure what else I can try.

I've tried disabling:

Origin Overlay

Windows Gaming Bar Overlay

NVidia Overlay

Disabled all screen capturing software and instant replay features. Attempted playing with all unnecessary services and applications stopped. I give up.