I'm using Photoshop CC 2018 with Windows 10.
and all type of brushes moves too slow to use. like, the brush follows the cursor after 1 second. (of course, the tablet pressure has disappeared.)
hard to describe but the liquify brush works abnormally too.
I really don't think it's about the tablet driver, because there's no difference between mouse and tablet. it still happens even I draw by mouse.
And everything is fine with other painting software, for example, Clip studio, Sai.
Not sure when this occurs exactly, but I guess the windows update caused it.
these are what I already tried,
-add the "PSUerconfig.txt" file in the settings folder. ▶Photoshop cc 2014 incompatible with Wacom ?
-uncheck ..things like this ▶ http://i.imgur.com/Viuhhok.jpg
-delete the windows 10 updates.
-downgrade the tablet driver.