Analog video is chaotic, and needs to be stabilized. Cheap products are guilty of over-marketing to the point of lying, as you cannot capture video so easily. It takes more than an old VCR and cheap USB doodad, including Best Buy or Walmart "brand name" junk.
You're problem is 3-fold.
1. That is a known-terrible capture card. It has many problems, including the issue you're seeing (which is a timing error, or timebase error, technically known as jitter).
2. That VCR isn't going to work. Sony is known to output problem signals. The transport is terrible, and has lots of timing jitter as a result. This is magnified by cheap capture card. This is why JVC S-VHS decks are so popular, as the built-in TBC usually corrects image issues (though not the underlying signal issues).
3. You cannot escape using a TBC (timebase corrector). It fixes the signal issues.
Capturing video takes several hundred dollars in hardware. Noting that you can buy it used, use it, and then resell it. So it's not a permanent cost. All it then takes is time to learn what to do, then do it. The needed gear is in the
Marketplace subforum, and note that I have some in there for sale as well.
With the right hardware, this process is relatively easy, and looks better than you'd have ever thought possible (as your old VCR was not playing the VHS tape to its maximum quality potential).