Delayed notifications

This is absolutely ridiculous! Youre a big enough company and you came out with a recent update, but cant you fix the delayed notifications?! I run a meetup and have to constantly go into the app to make sure i didnt miss someone signing up for the meetup or messaging me. Messages are received a day or more late, and other notifications almost never. Please fix this!!

Sabo0ha about Meetup: Social Events & Groups, v6.0.2