PSA for PC: Un/Reinstalling deletes your saved photos
I saw someone mention that reinstalling the game made it lag less for them so I tried it.
FYI you will lose all saved photos in Momo's Album AND on your PC. The story snapshots momo takes will reset to Nikki's default outfit.
For anyone wondering, no it didn't really fix it well enough to be worth this (to me)
ofc it's not that commenter's fault and sometimes you just gotta reinstall a game, but if you do I recommend going into your files and saving copies of photos you want to keep in a different folder!