I am trying to get sharp shadows with static lights but they always come out blocky even with fixing lightmaps to a higher resolution what is the fix for this? I also am using default unreal cubes as a floor so the lightmap UV must be fine

You don’t have to use stationary lights if you don’t need them in your scene, that’s no good advice from others!! Static lights should look great!!
Could you show your lightmap density view please?
Are you sure you don’t use BSP meshes?? Those need lower lightmap resulutions to get better results!!