The main problem is that Poppins is a display typeface, not a text typeface. It's not good for large blocks of small type, and in fact as I examine it more closely, it becomes obvious that it's a low-quality design.

Here are some of the problems I've noticed. I've annotated them here: https://imgur.com/a/8am9VJy

- The proportions are distorted, with some letters of excessively varying widths. Capitals like C, D, E, L, G are usually about the same size, but in Poppins, C, G and D are enormous while E and L are too narrow. You can do stuff like this to be cheeky, to have the type draw attention to itself in a display typeface; but a text typeface should aim to be legible, not flashy or distracting.

- Kerning is poor, with big irregular gaps between letters, especially after P and T.

- The lowercase e in particular is a problem. The middle bar is so thin that it almost disappears, and the tail comes so close that it almost closes the circle. You might think that a single letter can't mess up a whole design, but it's the most common letter in the English language. :)

- Hyphens are way off-center and parentheses are too tall, which just looks sloppy.

I discovered that you have entire pages of text set in Poppins on your website; these are actively painful to read! Like, just try to read the entire page and see if your eyes can tolerate reading all the way to the end, or try to count the number of times "search" appears in the text. Poppins has the silly, goofy personality of something for young children; it's hard to take seriously. It's named "Poppins" after all! And with all these quality issues to boot, pages like https://brave.com/brave-search-beta/ just look unprofessional.

Do you have a designer on staff? Your designer should be able to explain all this to you and more, and to choose a more legible typeface for your body text. Pick something boring, like the system font on Macs, or Inter, Source Sans, Open Sans, Roboto, etc.

Hope this helps! If you run an A/B test, let me know how it goes.