Hello everyone.
We received reports from players that some of the major issues got better for them with an updated Java. The lag decreased, zone refreshed popups disappeared and no java/uncaught errors appeared during a normal game session. Therefore, we would like to advise you, to test this out for yourself.
Please install the latest Java Version from the official page: https://www.java.com/en/download/manual.jsp (make sure to choose the correct version for your OS).
Note: We know the issue is connected to our system and are eagerly working on it. However, it is still important to keep your own system up to date, and Java doesn't seem to update itself for everyone.