How can I get rid of this annoying pixelation on the water LODs

Im playing on the better adventures+ modpack and im trying to use DH but i wait 30 mins or so for the world to render and the water looks pixelated or looks like it has grain on it and its really annoying and doesnt blend in. I've tried to remove certain mods, and mess around with some of the basic settings of DH and nothings changed yet can anyone help?