For example, I have the old Topaz plug-ins and when I use one of those as a smart filter with a PS filter like Gaussian Blur--if I then edit Gaussian Blur, the Topaz plug-in would just say updating on the screen. Now with a newer Topaz plug-in like Sharpen AI with another PS filter, when editing the PS filter the Topaz plug-in interface will open, reprocess, then close again. Depending on the plug-in's processing speed this can take forever. Another example is using ON1 Photo Raw 2020 plug-in as a smart filter with a PS blur filter--if I edit the blur filter the ON1 plug-in interface opens, "processes," closes and then I proceed with editing. At first I thought it was just Topaz, but it happens with other non-PS plug-ins also. It even happens if I just turn of the eye on a filter, everything opens, does their thing, then closes. If I'm just trying to see a difference by turn an eye on and off, this opening and closing of programs is incredibly frustrating. I can't think of an external plug-in that doesn't do this except maybe the old Topaz plug-ins. This also has occurred if I try to crop, all of the plug-ins open and close before the crop takes affect. The only way I've gotten around this is if I think I'm going to go in and out of a plug-in and I know another plug-in will open and close, I'll usually use several smart objects with each having its own filter. This works but is time consuming because of opening and closing smart objects and their filters. I hope I've explained this okay. I think trying to explain this is why I have not gotten much help from any support desk. Thanks for any advice you can give. My processor is an Intel i-5 7500 3.4 GHZ with 16Gb RAM. My OS and all programs are on a separate SSD from my data, so my computer is pretty speedy.