running bf5 at 4k without stuttering- Help?

Hello

I recently pickedup bf5 on PC and just cant dial in the settings to make it playable, very frustrating. My pc is a 4070 super with a 5600x, using a 4k monitor. This set up in bf2042 runs so so well, all high settings with DLSS and i get a pretty much locked 140 fps.

Any help would be much appreciated, i am using the dx 12 setting currently

Thanks

Alex