Stuttering and crashing

Haven't had many problems with Battlefield 6, the occasional scope sight being blurred but mainly good graphically. 

I am having problems with the new map presumably because of the physics and rendering of the sea. Every other map runs at around 170fps on the highest settings but the new map drops to 120fps and stuttering constantly, I've had one crash. Changing resolution, degree of dlss, running native has no impact, still stuttering and very little to no effect on fps, cpu at 60% usage and gpu 60-70% usage. I'm surprised not to see a separate setting in graphics to reduce the impact of the water temporarily till a solution is made.

I have a 7800x3d and a 5080 so I really shouldn't be having any issues.