iMac Mojave Photoshop CC colour and brush lag problems
So I installed Adobe CC 2019 in November 2018 and on opening some photos that had complex colour layers it completely destroyed my files irreparably. I had to recreate all the colours and levels because it read the layers wrong and somehow permanently altered them in the files. The service person I got was so incompetent that I had to deal with a manager, who after hours of fluffing around eventually gave up and told me to reinstall CC 2018. I lost a heap of editing time and nothing was really resolved.
So here I am in April 2019 paying for old software monthly and I've now encountered a new problem after updating my OS to Mojave 10.14.4. Now my brush is virtually unusable, having such a long delay until it draws a line and sometimes just not even doing one at all. I'm scared to update to CC 2019 after all the bulls**t last time and now yet again I'm in a position where I am losing valuable editing time.
Photoshop CC is such a rip off. Never had these issues with the CS versions.
Any help would be great.
Photoshop CC 2018
MacOS Mojave V10.14.4
iMac 2017 Processor 3.4GHz intel core i5
Mem 24G
Graphics Radeon Pro 570 4GB