Their top priority when implementing these improvements was to make sure that the new water shader is non-blocking to the rest of the gameplay code. This means it runs in the background without affecting gameplay or loading times. The water updates will run more efficiently than the current water tech in the game and should not cause any frame drops.
While this is still a work in progress and expecting further improvements to come, Devs wanted to share a preview of what this looks like in the meantime.