So I have the full Creative Cloud Suite and I use Photoshop most days for work, Illustrator not as often and Premiere Pro maybe less again. I always update when I get the messages and I recently updted Photoshop as part of this process.
Now though it takes ages to open up, then it lags something awful when I am trying to work, tells me that there is no memory to save things on ocassion despite my scratch disks being large, and when I try to close it off, that doesn't happen at all sometimes, other times it can take an hour to close! I usually have close it by going through the Task Manager but while it's running everything is laggy.
I've tried resetting preferences, I have tried updating more, I have tried uninstalling and reinstalling and I have cleaned my laptop every day using CCleaner Professional and Malwarebytes every day for the past week, including updating any out of date drivers but still no luck. I also tried clearing files and folders I don't really use off my laptop and nothing.
I'm running it on a HP Pavillion Gaming 15-ec0001na with AMD Ryzen 5 3550H with Radeon Vega Mobile Gfx 2.10 GHz Processor, Windows 10 Home 64-bit, 8GB DDR4 2400MHz RAM, 256GB M.2 NVMe SSD + 1000GB HDD, and Dedicated GeForce GTX 1050 3GB Graphics so there shouldn't be an issue and to date there hasn't been, Photoshop works fine on my desktop PC and I don't have the same issues with any of the other Adobe products, just Photoshop.