Do you ever notice the water in Skyrim flickering and distorting? It’s a common problem with older graphics cards, but there’s an easy fix!
Just follow these simple steps and you’ll be enjoying the beauty of Skyrim’s waters in no time.
Fixes for Flickering Water
There are several ways to get around this problem:
Fix #1
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Install and use NVIDIA GeForce Experience if you have Nvidia. Select "Optimal settings" for Skyrim in the games menu. Now, this might change the game's resolution from 1920 x 1080 to 2715 x 1527 depending on the size of your computer screen.
Skyrim will scale to this resolution, so do not worry. This will solve the problem. This fix has the drawback of requiring your graphics card to render at a considerably higher resolution.

Fix #2
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If your monitor supports 144 Hz rendering. You cannot play at 1920 x 1080 while maintaining 144 Hz. The Hz must be lowered by 24 steps.
Decide on 120, and the game should now run smoothly. To make the most of your screen, you have to constantly modify your settings, which is an issue.
Fix #3
Some users might attempt to open “SkyrimPrefs.ini” at this location: “C:\Users\USER\Documents\My Games\skyrim”.
Change “iPresentInterval=1” to “iPresentInterval=0.” For some players, this will work, and you might not need to take any further action.

Your FPS [1] can also be limited. You will receive the same number of frames per second (FPS) as Hz on a fast computer and fast monitor.
If your FPS is higher than 60, though, the game suffers. Although restricting to 60Hz might be effective, it would be excessive. The solution is to set the frame rate of the game itself to 60.