Good morning, photoshop is very slow and I tried everything. I have a mac os with Catalina, 10.15 with 8 gigs of memory, a 4 gig radeon pro 570X graphics card, I make illustrations and I use a Cintq Wacom pro 24, they are one year old. I use a large amount of brushes and the illustrations are done at 400ppi. I don't understand why the waiting wheel appears to me with every brush stroke, with every change of level .. I can't work like this .. Photoshop is the version 21.0.3. I have increased the cache levels to 8; the available RAM is 6.5 giga with 75% use. What's wrong? Can anyone help me? Thanks!