Why doesn't Blizzard fix the strange twitching of the image

The game has had a problem with strange micro staters for a long time, and it doesn’t matter what FPS you have, 60 or 240 doesn’t matter. If you change any of the graphics settings during the game, the image becomes smooth as it should be, but after restarting the game, the problem returns. Monitoring like MSI afterburner does not detect any twitching of the image. Such slowdowns appear randomly, but regularly. They look like a non-uniform smoothness of the image. Smoothly smoothly, and then the smoothness disappears for a few seconds and so on constantly. It’s not about PC components or the Internet.
People have already asked this question on reddit and other forums, but they have not found an answer.
I ask Blizzard not to ignore this problem and finally solve it.

I am not having this issue, make sure you have updated graphics drivers, doubtful there will be anymore code changes at this stage of the game.

No. The problem is present. It manifests itself in blurring the image when moving. For example, if you look at a character and run to the right or left, it’s difficult to focus on that character. If you minimize the game window and then expand it back, the image can become clear even when moving and you can easily distinguish objects and details even when moving, but if you just press esc and open the menu, then the problem comes back, if you open the chest with things, the blur may appear, but after a while it disappears again. If you change the graphics settings, the blur will appear or disappear. The problem is very old, it appeared on different graphics cards and monitors, I even found people on forums with a similar problem, but the developers have not fixed this obvious bug.