Need help fixing pen pressure

[진아5CB3]

I have recently downloaded photoshop, trying to use it as a drawing tool. IN the past when I tried downloading it, there were no problems with pen pressure. However, now when I try to draw with any brush, even downloaded from a site, all of the brushes draw as if there was full pressure being applied. I have reinstalled photoshop, tried new pens, and checked if pen pressure was enabled. How can I fix this? It's not because something is wrong with my tablet, I don't think, since I have other drawing platforms like SAI and Clip studio, and both of them work fine?

[JJMack]

If you running Windows 10 2004 you Photoshop need to be at version 21.2.3.  And you system need to be configured well.