Opening the brush palette with right button (pen button) is slower than ever for me. This menu has always been pretty slow though, but in cc 2018 its slower than ever before. It almost feel like this menu needs to be loaded with the brushes every time you hit the button. But, I tried deleting all the brushes in my palette and its still pretty slow. I mean, it doesn't take more than a second, but a menu like that should stay in ram and open instantly all the time. Its used constantly (!) if you are an artist painting and swapping brushes, and it really breaks the workflow waiting for it to open all the time.