Right now I am using my iPad mini instead of my full Mac. I have been having trouble with slow opening photos as well, on both the iPad mini and my Mac. My Mac is older, running older OS. But this iPad is only a few months old and usually really fast...great for watching 360 degree videos on YouTube and other intensive stuff.
I have TimeWarner cable internet, and usually have no problems. I started having issues with slow opening photos sometime after the merge.
I just went to the new database photos, but went back many pages to Oct. of last year, to this post...
http://garden.org/thread/view_...
Thinking this way I was opening a photo uploaded prior to the merge with NG.
When I opened the photo, in my head I counted 12 seconds with the
1-1000 -2-1000-3-1000 method.
Edited to say --- I meant the Plant ID forum - not the New database photos….