There is certainly lots to do. You assume there is less content after hitting 50 on your first job. Well, there's more to it than the melee/mage jobs. Crafting and gathering has lots to it. You don't have to spend all your days farming for tomes when you can sit and relax on a job like fishing. After looking at your lodestone profile, you still have lots to do before you are bored. You need to work on getting Mythology or Allagan pieces. On the topic of latency, it's mostly your internet service provider. The servers have been fine for me for the past week.

Here's a suggestion to those out there who are bored: Set goals for yourself.

By the way, Turn 5 of Coil is not broken. About three or so Free Companies completed it. You just have to figure out when to move away from a Twister spot. Well, you bought the game since you must have liked it. And you expected lots of content in the end? Sounds like you rushed to 50 and/or have not spammed Coil every week. The game has been out for like 2 months. Give it time for content.