Different watercolor papers take paint differently.
The higher the quality of the paper the better the fibers and sizing used to make it will interact with your paints (which need also to be quality artist paints).
If you’re having an issue, like the one I was on this spread (read my handwritten comments), and on other papers you don’t have that issue, you need to ask yourself if using the paper you’re testing is even worth testing.
There are lots of reasons to continue to use an inferior paper.
The number one reason is how it fits in your art supply budget.
Another reason might be that the paper has some other characteristics that you like to have so that you can utilize them because of some idiosyncratic way you work. (I feel that way about Stonehenge Printmaking and Drawing paper. It’s not made for watercolor painting, but I love painting on it with watercolors.)
Think about why you are using something. Think about how it impacts your art practice. Make choices and changes that will help meet your goals.