Thank you all for pitching in.
@greg Priday
I found that if I go to the layout of the row and choose full width, the parallax effects start working but the quality of the picture is still bad. If the layout of the row is standard, there are no parallax effects whatsoever.
Please see the example here: https://www.polygonherbs.com/front/
The version is 2.2.1 at the moment. The first row is created with a third party plugin and the second row is generated using the built in parallax effect of page builder. You can see the difference in the quality of the background picture.
P.S.
Version 2.2 gives me the same effects as the first row only much better. The Parallax effects are far nicer than the first row because the position of the picture is not fixed and it moves nicely the way it does in 2.2.
So I guess what you’re trying to do (combining the two and choosing the best effects of each) would certainly be the best move.
Thank you.