Welcome to Android. I just tried this, and I do not experience a delay for the DCIM/Camera folder. It came right up.
I realize this might not be what you are asking, but it might be helpful for you. Do you use
Google Photos to backup? If not, definitely try it. Once you take a photo, it's uploaded to Google Photos and I don't need to connect to the PC to check it, I just use the web browser. You can view it from your phone, Web browser, tablet, iPad, etc. Google Photos has unlimited free storage and tons of other great benefits related to search, organization and lots of other things. It is fantastic. I usually d o not ever connect to my PC.