Question Shader has low resolution on iOS

Hello,

We created a 'cloudy' effect in shadergraph, but can't get it to look quite right on iOS.

It works fine in the editor and in builds deployed to Android, but it looks blocky on iOS builds. I've attached the resulting shader to this post.

What I've done so far is make sure all quality settings are at the highest possible value, but it doesn't appear to have an effect.

I've attached screenshots of the editor and the on device versions, you'll notice one is really blocky.

I've found this topic:

https://forum.unity.com/threads/bug-found-shader-graph-on-android-textures-pixelization.643894/

But I'm not sure it's related and it doesn't help