Is it normal for Photoshop to be using 9GB of memory? I know video editing chews up a lot more, but I didn't expect to be using this much with PS.
Is there something I can do to optimize this?
Photoshop keeps the memory for future uses to avoid memory fragmentation.
check out this links:
Well my PC is older and has only 8GB of memory which has never slowed PS down. Yours seems to have 16GB of memory and it looks like PS is using more because it's able to use more. By default I'm guessing that PS uses a good chunk of your RAM, at least on something without panoramic stitching, so it can finish faster. There's probably a way to change this but I'm not sure how.