By the time you get enough crystaloids to make ONE piece of the lvl40+ sets you are already to the next 10s of lvls - should reduce the amount needed to make these and increase the drop rates to make them even worth it. I havent seen a single person wearing those sets...
The way the game was set up - if you didnt start the server in the first week or two you have no chance of getting the items at lower lvls that those that started early got. You might as well not start.
The server has been extremely laggy the last few days. World boss' are almost unplayable. I revive the "30 seconds" before I can exit the battle and get back up to the boss...