Apologies for necro'ing this thread. I'm adding all website issues we're able to address to my "To Do" list.
Sadly we have no control of Tapatalk's push notifications. I too get a little delay on them - some folks get them instantly. I'll do some google research and see what I can come up with. If it was something we could fix here we would. I'm going to mark this thread as resolved.
I still get post notifications, but for some reason, message notifications don't come through taptalk. I used to get an email as well, but those dont come through until I log into the site. Then they all come at once.