Set VRAM to 4gb, installed cryoutilities To improve aliasing and run at 40fps anywhere except cities:

• In Steam game preference set game resolution to 1920x1200 internal and external
• in game set resolution to 1920x1200
• check enable dynamic resolution
• set to 60fps
• set graphics settings to High(Desktop)
• set ambient occlusion to off
• in Steam deck menu set screen refresh to 40 and frame limit to 40
• set TDP to 9 and GPU to 1200

Will now have a much cleaner image with a mostly locked 40fps outside of cities and locked in light parties excluding rare effects during some bosses(like fog/smoke in one dungeon boss fight). Set HUD size to Full HD then resize everything to your preference.